{"title":"Blocks and Ratchets","description":"\u003ch1\u003eDinghy Blocks \u0026amp; Ratchets\u003c\/h1\u003e\n\u003ch2\u003eBROWSE OUR RANGE OF DINGHY BLOCKS \u0026amp; RATCHETS\u003c\/h2\u003e\n\u003cp\u003eHere Rooster stock all your dinghy blocks and ratchets from brands such as Harken, Ronstan, Selden, RWO, and Allen. Rooster helps you secure your boat so that it is ready when it comes to race day. Browse the full range below and get in touch if you have any questions or queries on the dinghy blocks and ratchets we stock.\u003c\/p\u003e\n\n\u003cstyle\u003e\n  h2{\n    font-weight: 300 !important;  \n    font-size: 16px; \n    letter-spacing: 1px !important;\n  }\n   @media (max-width: 600px) {\n    h2{\n      font-size: 10px !important;\n    }\n  }\n\u003c\/style\u003e","products":[{"product_id":"105461","title":"Ronstan RF8080 5mm Shock Block - Pair","description":"\u003cp\u003ePrice is for a pair of Shocks\u003c\/p\u003e\n\n\u003cp\u003e\u003cimg alt=\"Shock\" src=\"https:\/\/roostersailingweb.s3-eu-west-2.amazonaws.com\/img\/ProdDesc\/RF8080_1.jpg\" style=\"float:left; padding:25px\"\u003eThe Sheaveless Block - Available in four colour options - blue, green, grey and red with several attachment options, including webbing, pigtail, lashing and dyneema links, it will be the obvious choice for those kitesurfers, paragliders, control line deflections and purchase systems that require a lightweight high load capacity block.\u003cbr\u003e\n\u003cbr\u003e\nUltimate durability - With no moving parts SHOCKS provide ultimate durability and are maintenance free. They are ideal where sand and grit would compromise a bearing system or where regular flushing out isn´t possible. Their gentle 3-dimensional geometry is kind on lines, but is strong enough to cope with poor leads.\u003cbr\u003e\n\u003cbr\u003e\nSoft attachment specialists - SHOCKS are designed primarily for ´soft attachment´; spliced to a line end or lashed in place. The elongated attachment aperture is also ideal for webbing attachment, ensuring the intended orientation is maintained.\u003cbr\u003e\n\u003cbr\u003e\nVirtually limitless applications - The applications for SHOCKS are virtually limitless, including numerous high performance dinghy and small sailboat rigging applications including tweakers, vangs, trapezes, cunninghams, barber haulers and kite bridles. They are also handy on larger boats for uses such as lazy jacks, sail covers, tie-downs, ladder and motor hoists.\u003cbr\u003e\n\u003cbr\u003e\nHidden performance - Constructed from anodised aluminium and weighing a mere 2.5g, SHOCKS are outstanding performers in the strength and weight stakes. The clever design and exacting finishing also provide excellent free running at moderate changes of angle. Small \u0026amp; hi-tech line specialists SHOCKS accept lines from 1.5 mm up to 5 mm and function just as well with hi-tech uncovered braids as with traditional double braids.They are available in colour choices to help keep complicated rigging configurations more organised.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003eSHOCK RF8080 5mm Block Properties\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003ctable cellspacing=\"0\" style=\"width:350px\"\u003e\n\t\u003ctbody\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003eBreaking Load\u003c\/td\u003e\n\t\t\t\u003ctd\u003e350 kg\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003eOverall Length\u003c\/td\u003e\n\t\t\t\u003ctd\u003e22 mm\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003eWeight\u003c\/td\u003e\n\t\t\t\u003ctd\u003e2.5 g\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003eMax. Rope Dia.\u003c\/td\u003e\n\t\t\t\u003ctd\u003e5 mm\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003eMin. Rope Dia.\u003c\/td\u003e\n\t\t\t\u003ctd\u003e1.5 mm\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Ronstan","offers":[{"title":"Blue","offer_id":37654497525915,"sku":"129837","price":18.08,"currency_code":"GBP","in_stock":true},{"title":"Red","offer_id":37654497591451,"sku":"129840","price":18.08,"currency_code":"GBP","in_stock":true},{"title":"Silver","offer_id":37654497558683,"sku":"129839","price":18.08,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/105461-BE.jpg?v=1780690713"},{"product_id":"105518","title":"Allen 178-74 29mm Bullet Block with Inglefield Clip - Small Laser\/ILCA\/Pico Traveller Block","description":"\u003cp\u003e\u003cimg src=\"https:\/\/roostersailingweb.s3-eu-west-2.amazonaws.com\/img\/ProdDesc\/CLASS-LEGAL_140x125.jpg\" style=\"margin: 0px 5px 5px 0px; border: solid white; border-image: none; float: right;\"\u003eAllen 178-74 29mm Sunle Bullet Block with Inglefield Clip.\u003c\/p\u003e  \u003cp\u003eSmall traveller block for the Laser\u003csup\u003e®\u003c\/sup\u003e - this runs along the traveller and connects to the larger 278-74 block.\u003cbr\u003e \u003cbr\u003e Available in a choice of colours.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eLength: 69mm\u003c\/li\u003e \t\u003cli\u003eLine siize: 8mm\u003c\/li\u003e \t\u003cli\u003eBreaking load: 250kg\u003c\/li\u003e \t\u003cli\u003eSafe working load: 140kg\u003c\/li\u003e \t\u003cli\u003eWeight: 23g\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cbr\u003e To prevent the joint between these two blocks parting, we suggest you wrap the joint in electrical tape.\u003c\/p\u003e  \u003chr style=\"border: currentColor; border-image: none; height: 1px; color: rgb(204, 204, 204); background-color: rgb(204, 204, 204);\"\u003e \u003cp\u003eLaser\u003csup\u003e®\u003c\/sup\u003e is a registered trademark owned by Velum Limited and currently licensed for use in Europe to Laser Performance (Europe) Limited. Rooster Sailing Limited is fully independent of both Laser Performance (Europe) Limited and Velum Limited.\u003c\/p\u003e","brand":"Allen","offers":[{"title":"Blue","offer_id":37654518792347,"sku":"127833","price":10.57,"currency_code":"GBP","in_stock":true},{"title":"Grey","offer_id":37654518857883,"sku":"129517","price":9.54,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/105518.jpg?v=1780690769"},{"product_id":"105519","title":"Allen 278-74 40mm Bullet Block with Inglefield Clip - Large Laser\/ILCA\/Pico Traveller Block","description":"\u003cp\u003e\u003cimg src=\"https:\/\/roostersailingweb.s3-eu-west-2.amazonaws.com\/img\/ProdDesc\/CLASS-LEGAL_140x125.jpg\" style=\"margin: 0px 5px 5px 0px; border: solid white; border-image: none; float: right;\"\u003eAllen 278-74 29mm Single Bullet Block with Inglefield Clip.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eLength: 86mm\u003c\/li\u003e \t\u003cli\u003eLine size: 10mm\u003c\/li\u003e \t\u003cli\u003eBreaking load: 300kg\u003c\/li\u003e \t\u003cli\u003eSafe working load: 155kg\u003c\/li\u003e \t\u003cli\u003eWeight: 45g\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eLarge traveller block for the Laser\u003csup\u003e®\u003c\/sup\u003e - this connects to the smaller 178-74 block which runs along the traveller.\u003cbr\u003e \u003cbr\u003e Available in a choice of colours.\u003cbr\u003e \u003cbr\u003e To prevent the joint between these two blocks parting, we suggest you wrap the joint in electrical tape - see related items.\u003c\/p\u003e  \u003chr style=\"border: currentColor; border-image: none; height: 1px; color: rgb(204, 204, 204); background-color: rgb(204, 204, 204);\"\u003e \u003cp\u003eLaser\u003csup\u003e®\u003c\/sup\u003e is a registered trademark owned by Velum Limited and currently licensed for use in Europe to Laser Performance (Europe) Limited. Rooster Sailing Limited is fully independent of both Laser Performance (Europe) Limited and Velum Limited.\u003c\/p\u003e","brand":"Allen","offers":[{"title":"Blue","offer_id":37654519120027,"sku":"127834","price":14.8,"currency_code":"GBP","in_stock":true},{"title":"Grey","offer_id":37654519152795,"sku":"129754","price":14.8,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/105519-BE.jpg?v=1780690771"},{"product_id":"107251","title":"Ronstan RF8081 10mm Shock Block","description":"\u003cp\u003eThe Ronstan RF8081 SHOCK block is a lightweight, high load capacity alternative to a traditional block. They are designed primarily for ‘soft attachment’; spliced to a line end or lashed in place. The elongated attachment aperture is also ideal for webbing attachment, ensuring the intended orientation is maintained.\u003c\/p\u003e\n\n\u003cp\u003eWith no moving parts, SHOCKS provide ultimate durability and are maintenance free. They are resistant to sand, grit and salt and their gentle 3-dimensional geometry is kind on lines but is strong enough to cope with poor leads. The clever design and exacting finishing also provide excellent free running at moderate changes of angle. They function just as well with hi-tech uncovered braids as with traditional double braids.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003ePerformance \u0026amp; versatility\u003c\/li\u003e\n\t\u003cli\u003eUltra lightweight\u003c\/li\u003e\n\t\u003cli\u003eUltra compact\u003c\/li\u003e\n\t\u003cli\u003eDurable\u003c\/li\u003e\n\t\u003cli\u003eColour coded\u003c\/li\u003e\n\t\u003cli\u003eImpact resistant\u003c\/li\u003e\n\t\u003cli\u003eSmall line optimised\u003c\/li\u003e\n\t\u003cli\u003eHigh load capacity\u003c\/li\u003e\n\t\u003cli\u003ePoor alignment tolerant\u003c\/li\u003e\n\t\u003cli\u003eSoft attachment compatible\u003c\/li\u003e\n\t\u003cli\u003eAnodised Aluminium\u003c\/li\u003e\n\t\u003cli\u003eGrit \u0026amp; Salt resistant\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eSHOCK RF8081 10mm Block Properties\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003ctable cellspacing=\"0\" style=\"width:350px\"\u003e\n\t\u003ctbody\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003eBreaking Load\u003c\/td\u003e\n\t\t\t\u003ctd\u003e1000 kg\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003eOverall Length\u003c\/td\u003e\n\t\t\t\u003ctd\u003e36 mm\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003eWeight\u003c\/td\u003e\n\t\t\t\u003ctd\u003e12 g\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003eMax. Rope Dia.\u003c\/td\u003e\n\t\t\t\u003ctd\u003e10 mm\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003ctd\u003eMin. Rope Dia.\u003c\/td\u003e\n\t\t\t\u003ctd\u003e3 mm\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Ronstan","offers":[{"title":"Blue","offer_id":37654656843931,"sku":"133397","price":13.13,"currency_code":"GBP","in_stock":true},{"title":"Red","offer_id":37654656909467,"sku":"133398","price":13.13,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/107251.jpg?v=1780691168"},{"product_id":"127168","title":"Ronstan RF20101 20mm Single Loop Top Block","description":"\u003cp\u003e20mm Loop top ball bearing block\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654862856347,"sku":"127168","price":12.1,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/101000.jpg?v=1780691281"},{"product_id":"127172","title":"Ronstan RF20171 20mm Upright Lead Block","description":"\u003ctable\u003e \t\u003ctbody\u003e \t\t\u003ctr\u003e \t\t\t\u003ctd\u003e\u003cimg src=\"https:\/\/roostersailingweb.s3-eu-west-2.amazonaws.com\/img\/ProdDesc\/leadblkinfo.gif\"\u003e\u003c\/td\u003e \t\t\t\u003ctd\u003eLead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers.\u003cbr\u003e \t\t\tPrecision moulded Acetal sheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction. The 2-stage ball bearing system provides consistent performance over the full load range.\u003c\/td\u003e \t\t\u003c\/tr\u003e \t\u003c\/tbody\u003e \u003c\/table\u003e  \u003cp\u003e\u003cbr\u003e Applications:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eTypically used for halyards at the mast base\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eMaterials:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eAcetal ball bearings\u003c\/li\u003e \t\u003cli\u003eUV stabilised Acetal sheave\u003c\/li\u003e \t\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eFeatures:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eSheave Diameter - 20mm\u003c\/li\u003e \t\u003cli\u003eMaximum Rope Diameter - 6mm\u003c\/li\u003e \t\u003cli\u003eFastening diameter - 4mm\u003c\/li\u003e \t\u003cli\u003eMaximum working load - 250kg\u003c\/li\u003e \t\u003cli\u003eBreaking load 550kg\u003c\/li\u003e \t\u003cli\u003eWeight 18g\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654862954651,"sku":"127172","price":20.34,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/101004.jpg?v=1780691287"},{"product_id":"127173","title":"Ronstan RF20174 20mm Pivoting Lead Block","description":"\u003ctable\u003e \t\u003ctbody\u003e \t\t\u003ctr\u003e \t\t\t\u003ctd\u003e\u003cimg src=\"https:\/\/roostersailingweb.s3-eu-west-2.amazonaws.com\/img\/ProdDesc\/leadblkinfo.gif\"\u003e\u003c\/td\u003e \t\t\t\u003ctd\u003eLead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers.\u003cbr\u003e \t\t\tPrecision moulded Acetal sheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction. The 2-stage ball bearing system provides consistent performance over the full load range.\u003c\/td\u003e \t\t\u003c\/tr\u003e \t\u003c\/tbody\u003e \u003c\/table\u003e  \u003cp\u003e\u003cbr\u003e Applications:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003ePivoting version suits controls that need to be trimmed from either side of the boat\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eMaterials:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eAcetal ball bearings\u003c\/li\u003e \t\u003cli\u003eUV stabilised Acetal sheave\u003c\/li\u003e \t\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eFeatures:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003e180 degree pivoting sheave\u003c\/li\u003e \t\u003cli\u003eSheave Diameter - 20mm\u003c\/li\u003e \t\u003cli\u003eMaximum Rope Diameter - 6mm\u003c\/li\u003e \t\u003cli\u003eFastening diameter - 4mm\u003c\/li\u003e \t\u003cli\u003eMaximum working load - 250kg\u003c\/li\u003e \t\u003cli\u003eBreaking load 550kg\u003c\/li\u003e \t\u003cli\u003eWeight 30g\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654863446171,"sku":"127173","price":36.06,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/101005.jpg?v=1780691286"},{"product_id":"127174","title":"Ronstan RF20175 20mm Pivoting Lead Block with Cam Cleat","description":"\u003cp\u003eSwivel cleat bases permit easy cleating and releasing from any angle.\u003cbr\u003e\nSheave can be relocated to allow the control line to feed from below.Comes complete with Series 20 ball bearing sheave, small T-Cleat and the Fast Track fairlead.\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eSuitable for sheet leads and halyards on dinghies and catamarans\u003c\/li\u003e\n\t\u003cli\u003eGrade 316 stainless steel ball bearings\u003c\/li\u003e\n\t\u003cli\u003eGrade 316 stainless steel load housing\u003c\/li\u003e\n\t\u003cli\u003eUV stabilised acetal sheave\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\n\u003cstrong\u003eRonstan\u003c\/strong\u003e \u003cstrong\u003eRF20175 Properties\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n\u003ctable cellspacing=\"0\" style=\"width:323px\"\u003e\n\t\u003ctbody\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth style=\"text-align:left\"\u003eNumber of Base Fixing Holes\u003c\/th\u003e\n\t\t\t\u003ctd\u003e2 no.\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth style=\"text-align:left\"\u003eMaximum Working Load via Cleat\u003c\/th\u003e\n\t\t\t\u003ctd\u003e125 kg\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth style=\"text-align:left\"\u003eFixing Hole diameter\u003c\/th\u003e\n\t\t\t\u003ctd\u003e4 mm\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth style=\"text-align:left\"\u003eWeight\u003c\/th\u003e\n\t\t\t\u003ctd\u003e79 grams\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654863937691,"sku":"127174","price":73.13,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/127174_r1.jpg?v=1780691288"},{"product_id":"127175","title":"Ronstan RF20202 20mm Double Block","description":"\u003cp\u003eDouble block with 2-axis shackle head.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003ePin diameter - 4mm\u003c\/li\u003e \t\u003cli\u003eMax working load - 350kg\u003c\/li\u003e \t\u003cli\u003eBreaking load - 700kg\u003c\/li\u003e \t\u003cli\u003eWeight - 42g\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654864167067,"sku":"127175","price":31.98,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/101007.jpg?v=1780691289"},{"product_id":"127177","title":"Ronstan RF20281 20mm Double In-Line Block","description":"\u003cp\u003eDouble block, in-line.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eMax working load - 250kg\u003c\/li\u003e \t\u003cli\u003eBreaking load - 550kg\u003c\/li\u003e \t\u003cli\u003eWeight - 28g\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654864887963,"sku":"127177","price":32.42,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/101009.jpg?v=1780691291"},{"product_id":"127178","title":"Ronstan RF20284 20mm Traveller Blocks","description":"\u003cp\u003eLinked blocks.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eMax working load - 250kg\u003c\/li\u003e \t\u003cli\u003eBreaking load - 550kg\u003c\/li\u003e \t\u003cli\u003eWeight - 30g\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654865739931,"sku":"127178","price":25.12,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/101010.jpg?v=1780691292"},{"product_id":"127179","title":"Ronstan RF20302 20mm Triple Block","description":"\u003cp\u003eTriple block with 2-axis shackle head.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003ePin diameter - 4mm\u003c\/li\u003e \t\u003cli\u003eMax working load - 400kg\u003c\/li\u003e \t\u003cli\u003eBreaking load - 850kg\u003c\/li\u003e \t\u003cli\u003eWeight - 62g\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654866722971,"sku":"127179","price":43.68,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/101011.jpg?v=1780691293"},{"product_id":"127181","title":"Ronstan RF20332 20mm Triple Block with Becket \u0026 Cam Cleat","description":"\u003cp\u003eThe RF20332 - Precision moulded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance \u0026amp; low friction.\u003c\/p\u003e\n\n\u003cp\u003eApplications:\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eDinghy control lines\u003c\/li\u003e\n\t\u003cli\u003eDinghy kickers\u003c\/li\u003e\n\t\u003cli\u003eCunninghams\u003c\/li\u003e\n\t\u003cli\u003eTraveller controls\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eMaterials:\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eStainless steel ball bearings\u003c\/li\u003e\n\t\u003cli\u003eUV stabilised Acetal sheave\u003c\/li\u003e\n\t\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e\n\t\u003cli\u003eImpact and UV resistant, fibre reinforced Nylon cheeks\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eRonstan RF20332 Properties\u003c\/strong\u003e\u003c\/h3\u003e\n\n\u003ctable cellspacing=\"0\" style=\"width:323px\"\u003e\n\t\u003ctbody\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth style=\"text-align:left\"\u003eSheave Dia.\u003c\/th\u003e\n\t\t\t\u003ctd\u003e20 mm.\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth style=\"text-align:left\"\u003eBreaking Load\u003c\/th\u003e\n\t\t\t\u003ctd\u003e850 kg\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth style=\"text-align:left\"\u003ePin Dia.\u003c\/th\u003e\n\t\t\t\u003ctd\u003e4 mm\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth style=\"text-align:left\"\u003eMaximum Line Dia.\u003c\/th\u003e\n\t\t\t\u003ctd\u003e6mm\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth style=\"text-align:left\"\u003eMaximum Working Load\u003c\/th\u003e\n\t\t\t\u003ctd\u003e400 kg\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth style=\"text-align:left\"\u003eFixing Hole diameter\u003c\/th\u003e\n\t\t\t\u003ctd\u003e4 mm\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth style=\"text-align:left\"\u003eWeight\u003c\/th\u003e\n\t\t\t\u003ctd\u003e122 grams\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cp\u003e\u003cstrong\u003eNOTE\u003c\/strong\u003e: Line load through cleat not to exceed 125kg\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654867607707,"sku":"127181","price":80.71,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/127181_r1.jpg?v=1780691296"},{"product_id":"127183","title":"Ronstan RF30100 30mm Single Block with Swivel Shackle Head","description":"\u003cp\u003eSingle block with swivel shackle head. Suitable for but not restricted to use as a forward boom block on the Topper and the 4000 mast spinnaker halyard block.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003ePin diameter - 4mm\u003c\/li\u003e \t\u003cli\u003eMax working load - 300kg\u003c\/li\u003e \t\u003cli\u003eBreaking load - 750kg\u003c\/li\u003e \t\u003cli\u003eWeight - 34g\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654868295835,"sku":"127183","price":21.82,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/101015_c4cc7030-c704-4f59-8d7e-4a731fa357b4.jpg?v=1780691298"},{"product_id":"127184","title":"Ronstan RF30101 30mm Single Loop Top Block","description":"\u003cp\u003eLow friction 2-stage ball bearing system provides consistent performance over the full working load range. Lightweight, with high static and dynamic load capacity. Ideal for the Topper mainsheet system.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eSheave diameter: 30mm\u003c\/li\u003e \t\u003cli\u003eMaxumum rope diameter: 8mm\u003c\/li\u003e \t\u003cli\u003eMaximum working load: 300kg\u003c\/li\u003e \t\u003cli\u003eBreaking load: 750kg\u003c\/li\u003e \t\u003cli\u003eWeight: 28g\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654868557979,"sku":"127184","price":12.82,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/127184.jpg?v=1780691298"},{"product_id":"127180","title":"Ronstan RF20312 20mm Triple Block with Becket","description":"\u003cp\u003eTriple block with becket and 2-axis shackle head.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003ePin diameter - 4mm\u003c\/li\u003e \t\u003cli\u003eMax working load - 400kg\u003c\/li\u003e \t\u003cli\u003eBreaking load - 850kg\u003c\/li\u003e \t\u003cli\u003eWeight - 64g\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654869213339,"sku":"127180","price":47.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/101012.jpg?v=1780691293"},{"product_id":"127198","title":"Ronstan RF50100 50mm Single Block with Swivel Shackle Head","description":"\u003ctable\u003e \t\u003ctbody\u003e \t\t\u003ctr\u003e \t\t\t\u003ctd\u003e\u003cimg src=\"https:\/\/roostersailingweb.s3-eu-west-2.amazonaws.com\/img\/ProdDesc\/ronbear.gif\"\u003e\u003c\/td\u003e \t\t\t\u003ctd\u003ePrecision moulded Acetal sheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction. The 2-stage ball bearing system provides consistent performance over the full load range.\u003cbr\u003e \t\t\tHead can be locked at 0° or 90° by engaging the grub screw in either the 0 or 90 degree position.\u003c\/td\u003e \t\t\u003c\/tr\u003e \t\u003c\/tbody\u003e \u003c\/table\u003e  \u003cp\u003e\u003cbr\u003e Applications:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eMainsheet\u003c\/li\u003e \t\u003cli\u003eSpinnaker sheets\u003c\/li\u003e \t\u003cli\u003eHalyards and other primary applications on boats up to 10m (33ft)\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eMaterials:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eAcetal ball bearings\u003c\/li\u003e \t\u003cli\u003eUV stabilised Acetal sheave\u003c\/li\u003e \t\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e \t\u003cli\u003eImpact and UV resistant, fibre reinforced Nylon cheeks\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eFeatures:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eSheave Diameter - 50mm\u003c\/li\u003e \t\u003cli\u003eMaximum Rope Diameter - 12mm\u003c\/li\u003e \t\u003cli\u003ePin diameter - 5mm\u003c\/li\u003e \t\u003cli\u003eMaximum working load - 500kg\u003c\/li\u003e \t\u003cli\u003eBreaking load 1500kg\u003c\/li\u003e \t\u003cli\u003eWeight 117g\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654871769243,"sku":"127198","price":31.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/101059.jpg?v=1780691312"},{"product_id":"127199","title":"Ronstan RF50101 50mm Single Loop Top Block","description":"\u003ctable\u003e \t\u003ctbody\u003e \t\t\u003ctr\u003e \t\t\t\u003ctd\u003e\u003cimg src=\"https:\/\/roostersailingweb.s3-eu-west-2.amazonaws.com\/img\/ProdDesc\/ronbear.gif\"\u003e\u003c\/td\u003e \t\t\t\u003ctd\u003ePrecision moulded Acetal sheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction. The 2-stage ball bearing system provides consistent performance over the full load range.\u003cbr\u003e \t\t\tHead can be locked at 0° or 90° by engaging the grub screw in either the 0 or 90 degree position.\u003c\/td\u003e \t\t\u003c\/tr\u003e \t\u003c\/tbody\u003e \u003c\/table\u003e  \u003cp\u003e\u003cbr\u003e Applications:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eMainsheet\u003c\/li\u003e \t\u003cli\u003eSpinnaker sheets\u003c\/li\u003e \t\u003cli\u003eHalyards and other primary applications on boats up to 10m (33ft)\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eMaterials:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eAcetal ball bearings\u003c\/li\u003e \t\u003cli\u003eUV stabilised Acetal sheave\u003c\/li\u003e \t\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e \t\u003cli\u003eImpact and UV resistant, fibre reinforced Nylon cheeks\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eFeatures:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eSheave Diameter - 50mm\u003c\/li\u003e \t\u003cli\u003eMaximum Rope Diameter - 12mm\u003c\/li\u003e \t\u003cli\u003eMaximum working load - 500kg\u003c\/li\u003e \t\u003cli\u003eBreaking load 1500kg\u003c\/li\u003e \t\u003cli\u003eWeight 97g\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654871834779,"sku":"127199","price":29.32,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/101060.jpg?v=1780691314"},{"product_id":"127200","title":"Ronstan RF5011 Medium T-Cleat (GREY)","description":"\u003cp\u003eRonstan RF5011 Fibre Reinforced T-Cleat.\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eOutstanding value for most cleating applications.\u003c\/li\u003e\n\t\u003cli\u003eHigh strength.\u003c\/li\u003e\n\t\u003cli\u003eSuperior holding power.\u003c\/li\u003e\n\t\u003cli\u003eLightweight.\u003c\/li\u003e\n\t\u003cli\u003eCorrosion resistant.\u003c\/li\u003e\n\t\u003cli\u003eSelf lubricating, self-cleaning bearings.\u003c\/li\u003e\n\t\u003cli\u003eLow line entry effort, easy to release .\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3 style=\"text-align:left\"\u003e\n\u003cstrong\u003eRonstan RF5011\u003c\/strong\u003e \u003cstrong\u003eProperties\u003c\/strong\u003e\n\u003c\/h3\u003e\n\n\u003ctable align=\"left\" cellspacing=\"0\" style=\"width:322px\"\u003e\n\t\u003ctbody\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth style=\"text-align:left\"\u003eRope diameter\u003c\/th\u003e\n\t\t\t\u003ctd\u003e3-12 mm\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth style=\"text-align:left\"\u003eHeight\u003c\/th\u003e\n\t\t\t\u003ctd\u003e26 mm\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth style=\"text-align:left\"\u003eWidth\u003c\/th\u003e\n\t\t\t\u003ctd\u003e31 mm\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth style=\"text-align:left\"\u003eLength\u003c\/th\u003e\n\t\t\t\u003ctd\u003e66 mm\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth style=\"text-align:left\"\u003eFastener\u003c\/th\u003e\n\t\t\t\u003ctd\u003eM5\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth style=\"text-align:left\"\u003eFastener hole centres\u003c\/th\u003e\n\t\t\t\u003ctd\u003e38 mm\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth style=\"text-align:left\"\u003eWorking load\u003c\/th\u003e\n\t\t\t\u003ctd\u003e125 kg\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth style=\"text-align:left\"\u003eBreaking load\u003c\/th\u003e\n\t\t\t\u003ctd\u003e250 kg\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\t\u003ctr\u003e\n\t\t\t\u003cth style=\"text-align:left\"\u003eWeight\u003c\/th\u003e\n\t\t\t\u003ctd\u003e50 g\u003c\/td\u003e\n\t\t\u003c\/tr\u003e\n\t\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654871965851,"sku":"127200","price":26.81,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/101062.jpg?v=1780691314"},{"product_id":"127201","title":"Ronstan RF50110 50mm Single Swivel Shackle Head with Becket","description":"\u003ctable\u003e \t\u003ctbody\u003e \t\t\u003ctr\u003e \t\t\t\u003ctd\u003e\u003cimg src=\"https:\/\/roostersailingweb.s3-eu-west-2.amazonaws.com\/img\/ProdDesc\/ronbear.gif\"\u003e\u003c\/td\u003e \t\t\t\u003ctd\u003ePrecision moulded Acetal sheaves running on Acetal or Torlon® ball bearings provide high performance \u0026amp; low friction. The 2-stage ball bearing system provides consistent performance over the full load range.\u003cbr\u003e \t\t\tHead can be locked at 0° or 90° by engaging the grub screw in either the 0 or 90 degree position.\u003c\/td\u003e \t\t\u003c\/tr\u003e \t\u003c\/tbody\u003e \u003c\/table\u003e  \u003cp\u003e\u003cbr\u003e Applications:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eMainsheet\u003c\/li\u003e \t\u003cli\u003eSpinnaker sheets\u003c\/li\u003e \t\u003cli\u003eHalyards and other primary applications on boats up to 10m (33ft)\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eMaterials:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eAcetal ball bearings\u003c\/li\u003e \t\u003cli\u003eUV stabilised Acetal sheave\u003c\/li\u003e \t\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e \t\u003cli\u003eImpact and UV resistant, fibre reinforced Nylon cheeks\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eFeatures:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eSheave Diameter - 50mm\u003c\/li\u003e \t\u003cli\u003eMaximum Rope Diameter - 12mm\u003c\/li\u003e \t\u003cli\u003ePin diameter - 5mm\u003c\/li\u003e \t\u003cli\u003eMaximum working load - 500kg\u003c\/li\u003e \t\u003cli\u003eBreaking load 1500kg\u003c\/li\u003e \t\u003cli\u003eWeight 133g\u003c\/li\u003e \u003c\/ul\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654872457371,"sku":"127201","price":47.51,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/101063.jpg?v=1780691316"},{"product_id":"127205","title":"Ronstan RF62100 60mm 'Freddie' Ratchet Block","description":"\u003cp\u003eQuite simply a nice reliable block - suitable for mainsheet aplications. Very low friction when released - yet grippy under load. Take 5-8 mm rope comfortably. Ideal for the Laser\u003csup\u003e®\u003c\/sup\u003e Mainsheet Block.\u003c\/p\u003e  \u003cp\u003e \u003c\/p\u003e  \u003cp\u003e \u003c\/p\u003e  \u003cp\u003e \u003c\/p\u003e  \u003cp\u003e \u003c\/p\u003e  \u003cp\u003e \u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eSheave diameter 60mm\u003c\/li\u003e \t\u003cli\u003eMax rope diameter 10mm\u003c\/li\u003e \t\u003cli\u003ePin diameter 5mm\u003c\/li\u003e \t\u003cli\u003eMax working load - 250kg\u003c\/li\u003e \t\u003cli\u003eBreaking load - 1370kg\u003c\/li\u003e \t\u003cli\u003eWeight - 126g\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e\u003cbr\u003e The patented extruded hole design provides up to 14:1 holding power. The ratchet can be engaged\/disengaged with the switch fitted to the side of the block.\u003c\/p\u003e  \u003cp\u003e \u003c\/p\u003e  \u003cp\u003e \u003c\/p\u003e  \u003cp\u003e \u003c\/p\u003e  \u003chr style=\"border: currentColor; border-image: none; height: 1px; color: rgb(204, 204, 204); background-color: rgb(204, 204, 204);\"\u003e \u003cp\u003eLaser\u003csup\u003e®\u003c\/sup\u003e is a registered trademark owned by Velum Limited and currently licensed for use in Europe to Laser Performance (Europe) Limited. Rooster Sailing Limited is fully independent of both Laser Performance (Europe) Limited and Velum Limited.\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654873669787,"sku":"127205","price":187.79,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/101077.jpg?v=1780691321"},{"product_id":"127210","title":"Ronstan RF815 5mm Two Way Link","description":"\u003cp\u003eFor use with Ronstan Ratchet Blocks.\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654874423451,"sku":"127210","price":29.52,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/101085.jpg?v=1780691326"},{"product_id":"127319","title":"SeaSure 00.39 25mm Plastic Block","description":"\u003cp\u003eThe high strength to weight ratio and simple construction of this Seasure 00.39 block gives years of trouble free service. Featuring electro polished 316 stainless steel construction, hollow rivets for lightness and tough plastic sheaves.\u003cbr\u003eTypical uses include control lines, halyards, outhauls, kicking straps, furling lines, cunninghams traveller control lines, leech lines, dinghy spinnaker sheets, guys and halyards. \u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMaximum rope size 8mm\u003c\/li\u003e\n\u003cli\u003eTough \"Arnite\" plastic sheave\u003c\/li\u003e\n\u003cli\u003ePlain low friction plastic onto stainless steel bearing\u003c\/li\u003e\n\u003cli\u003eMaximum weight 49g\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Seasure","offers":[{"title":"Default Title","offer_id":37654889791643,"sku":"127319","price":10.15,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/101369_a2438de6-da7c-4ef9-a0e6-3e2983a678b3.jpg?v=1780691366"},{"product_id":"127372","title":"SeaSure 00.40 20mm Shuttle Block","description":"\u003cp\u003eThe perfect shuttle block for take up on control lines.\u003c\/p\u003e","brand":"Seasure","offers":[{"title":"Default Title","offer_id":37654898770075,"sku":"127372","price":13.45,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/101430.jpg?v=1780691381"},{"product_id":"127730","title":"Harken 2670 75mm Carbo Ratchet Block","description":"\u003cp\u003eHarken 2670 Carbo Ratchet Block. Carbo Ratchets allow sailors to hand hold loaded lines and offer balance between holding power and controlled easing.\u003cbr\u003e \u003cbr\u003e Nylon resin sideplates are densely packed with long glass fibres for a compact block with a high strength to weight ratio. Machined aluminium sheaves are Hardkote anodised for strength and corrosion resistance. Eight facets hold the line securely. Free rolling ball bearings, sheave and sideplates UV stabilised with black additive for maximum protection.\u003cbr\u003e \u003cbr\u003e This 75mm switchable ratchet provides precise on\/off control with accessible, easy to operate on\/off switches on both sides of the block.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eSheave diameter: 75mm\u003c\/li\u003e \t\u003cli\u003eLength: 137mm\u003c\/li\u003e \t\u003cli\u003eWeight: 227g\u003c\/li\u003e \t\u003cli\u003eShackle pin diameter: 6mm\u003c\/li\u003e \t\u003cli\u003eMaximum line diameter: 12mm\u003c\/li\u003e \t\u003cli\u003eMaximum working load: 341kg\u003c\/li\u003e \t\u003cli\u003eBreaking load: 1361kg\u003c\/li\u003e \u003c\/ul\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":37654922166427,"sku":"127730","price":119.64,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/101938.jpg?v=1780691514"},{"product_id":"127731","title":"Harken 2680 75mm Carbo Ratchamatic Block","description":"\u003cp\u003eHarken 2680 Ratchamatic Block. The Carbo Ratchmatic is a load sensing ratchet block that rolls freely in both directions under low loads and automatically engages the ratchet as loads increase. Shifting between ratchet and light air modes is seamless.Unloaded main and jib sheets run out freely during mark roundings and asymmetrical spinnakers free instantly during jibes.\u003cbr\u003e \u003cbr\u003e Ratchet engagement may be adjusted to a higher or lower load according to strength and sailing style.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eSheave diameter: 75mm\u003c\/li\u003e \t\u003cli\u003eLength: 137mm\u003c\/li\u003e \t\u003cli\u003eWeight: 238g\u003c\/li\u003e \t\u003cli\u003eShackle pin diameter: 6mm\u003c\/li\u003e \t\u003cli\u003eMaximum line diameter: 12mm\u003c\/li\u003e \t\u003cli\u003eMaximum working load: 341kg\u003c\/li\u003e \t\u003cli\u003eBreaking load: 1361kg\u003c\/li\u003e \t\u003cli\u003eHolding power w\/180 degree wrap: 15:1\u003c\/li\u003e \u003c\/ul\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":37654922199195,"sku":"127731","price":186.68,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/101939.jpg?v=1780691516"},{"product_id":"127734","title":"Harken 1603 Midrange Stand-Up Spring - 64mm x 35mm","description":"\u003cp\u003eHarken 1603 Midrange Stand-Up Spring. Springs are used to support blocks on padeyes, eyestraps, bases and traveler cars. Keeps blocks from hitting the deck.\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eDimension A: 64mm\u003c\/li\u003e\n\t\u003cli\u003eDimension B: 35mm\u003c\/li\u003e\n\t\u003cli\u003eWeight: 21g\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis spring is recommended for the Laser mainsheet block setup.\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":37654922264731,"sku":"127734","price":4.42,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/101943_ceaeb633-540d-454b-94ba-b9c5c77eff42.jpg?v=1780691516"},{"product_id":"127798","title":"Allen A2033 30mm Double Dynamic Block with Becket","description":"\u003cp\u003eAllen 2033 30mm Dynamic Double Dynamic Block with Becket.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eLength: 76mm\u003c\/li\u003e \t\u003cli\u003eRope diameter: 5-8mm\u003c\/li\u003e \t\u003cli\u003eBreaking load: 1250kg\u003c\/li\u003e \t\u003cli\u003eMaximum dynamic load: 280kg\u003c\/li\u003e \t\u003cli\u003eWeight: 72g\u003c\/li\u003e \u003c\/ul\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":37654924001435,"sku":"127798","price":47.15,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/102051.jpg?v=1780691531"},{"product_id":"127799","title":"Allen 2034 30mm Triple Dynamic Block","description":"\u003cp\u003eAllen 2034 30mm Triple Dynamic Block.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eLength: 67mm\u003c\/li\u003e \t\u003cli\u003eRope diameter: 5-8mm\u003c\/li\u003e \t\u003cli\u003eBreaking load: 1750kg\u003c\/li\u003e \t\u003cli\u003eMaximum dynamic load: 420kg\u003c\/li\u003e \t\u003cli\u003eWeight: 103g\u003c\/li\u003e \u003c\/ul\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":37654924034203,"sku":"127799","price":60.29,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/102052.jpg?v=1780691532"},{"product_id":"127800","title":"Allen A2035 30mm Triple Dynamic Block with Becket","description":"\u003cp\u003eAllen 2035 30mm Triple Dynamic Block with Becket.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eLength: 87mm\u003c\/li\u003e \t\u003cli\u003eRope diameter: 5-8mm\u003c\/li\u003e \t\u003cli\u003eBreaking load: 1750kg\u003c\/li\u003e \t\u003cli\u003eMaximum dynamic load: 490kg\u003c\/li\u003e \t\u003cli\u003eWeight: 114g\u003c\/li\u003e \u003c\/ul\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":37654924066971,"sku":"127800","price":70.34,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/102053.jpg?v=1780691532"},{"product_id":"127801","title":"Allen A4568 16mm High Tension Micro Block","description":"\u003cp\u003eAllen 4568 High Tension Micro Block. Specifically intended for use where wire and\/or dyneema lines are loaded under tension. The entire block is engineered using 316 stainless steel and the inner ball sheave is CNC machined from solid, giving unfailing results every time.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eSheave size: 16mm\u003c\/li\u003e \t\u003cli\u003eLength: 29mm\u003c\/li\u003e \t\u003cli\u003eLine diameter: 2-4mm\u003c\/li\u003e \t\u003cli\u003eShackle pin diameter: 4mm\u003c\/li\u003e \t\u003cli\u003eBreaking load: 400kg\u003c\/li\u003e \t\u003cli\u003eWeight: 11g\u003c\/li\u003e \u003c\/ul\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":37654924263579,"sku":"127801","price":25.26,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/102054.jpg?v=1780691532"},{"product_id":"127831","title":"Allen A.278 38mm Bullet Block - Laser\/ILCA\/Pico Forward Boom Block (BLUE)","description":"\u003cp\u003e\u003cimg src=\"https:\/\/roostersailingweb.s3-eu-west-2.amazonaws.com\/img\/ProdDesc\/CLASS-LEGAL_140x125.jpg\" style=\"margin: 0px 5px 5px 0px; border: solid white; border-image: none; float: right;\"\u003eAllen 278 38mm Bullet Block. A replacement forward block for the boom. Also available in grey.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eLength: 66mm\u003c\/li\u003e \t\u003cli\u003eLine size: 10mm\u003c\/li\u003e \t\u003cli\u003eBreaking load: 300kg\u003c\/li\u003e \t\u003cli\u003eSafe working load: 155kg\u003c\/li\u003e \t\u003cli\u003eWeight 36g\u003c\/li\u003e \u003c\/ul\u003e  \u003chr style=\"border: currentColor; border-image: none; height: 1px; color: rgb(204, 204, 204); background-color: rgb(204, 204, 204);\"\u003e \u003cp\u003eLaser\u003csup\u003e®\u003c\/sup\u003e is a registered trademark owned by Velum Limited and currently licensed for use in Europe to Laser Performance (Europe) Limited. Rooster Sailing Limited is fully independent of both Laser Performance (Europe) Limited and Velum Limited.\u003c\/p\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":37654925639835,"sku":"127831","price":11.28,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/102112.jpg?v=1780691547"},{"product_id":"127832","title":"Allen A.378 38mm Single with Becket - Laser\/ILCA\/Pico Rear Boom Block (BLUE)","description":"\u003cp\u003e\u003cimg src=\"https:\/\/roostersailingweb.s3-eu-west-2.amazonaws.com\/img\/ProdDesc\/CLASS-LEGAL_140x125.jpg\" style=\"margin: 0px 5px 5px 0px; border: solid white; border-image: none; float: right;\"\u003eAllen 378 Single Bullet Block with Becket. Rear boom block with becket for the Laser\u003csup\u003e\u003cfont size=\"2\"\u003e®\u003c\/font\u003e\u003c\/sup\u003e. This is the block mounted at the end of the boom - also available in grey.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eLength: 85mm\u003c\/li\u003e \t\u003cli\u003eLine size: 10mm\u003c\/li\u003e \t\u003cli\u003eBreaking load: 300kg\u003c\/li\u003e \t\u003cli\u003eSafe working load: 155kg\u003c\/li\u003e \t\u003cli\u003eWeight: 38g\u003c\/li\u003e \u003c\/ul\u003e  \u003chr style=\"border: currentColor; border-image: none; height: 1px; color: rgb(204, 204, 204); background-color: rgb(204, 204, 204);\"\u003e \u003cp\u003eLaser\u003csup\u003e®\u003c\/sup\u003e is a registered trademark owned by Velum Limited and currently licensed for use in Europe to Laser Performance (Europe) Limited. Rooster Sailing Limited is fully independent of both Laser Performance (Europe) Limited and Velum Limited.\u003c\/p\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":37654925738139,"sku":"127832","price":14.89,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/102113.jpg?v=1780691547"},{"product_id":"127895","title":"Optiparts EX1320 Optimist Mainsheet Block with Becket","description":"\u003cp\u003eStandard blocks with stainless steel cheeks and nylon sheave. Sheave diameter 34 mm. For ropes up to 10 mm.\u003c\/p\u003e","brand":"Optiparts","offers":[{"title":"Default Title","offer_id":37654928818331,"sku":"127895","price":11.09,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/102216_010655ba-b050-4ccf-b373-d55c3564cc4b.jpg?v=1780691562"},{"product_id":"127896","title":"Optiparts EX1327 Optimist Mainsheet Fiddle Block","description":"\u003cp\u003ePlain bearing WinDesign injection molded blocks. Nylon cheeks and acetal sheaves. Lightweight, very strong and affordable.\u003cbr\u003e These mainsheet blocks are designed for Optimists and other small dinghies and can be attached with ropes, webbing and shackles.\u003cbr\u003e \u003cbr\u003e The cheeks can be opened and then the blocks can be attached direct on existing deck eyes. For ropes up to 8 mm.\u003c\/p\u003e","brand":"Optiparts","offers":[{"title":"Default Title","offer_id":37654928883867,"sku":"127896","price":18.02,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/102217.jpg?v=1780691562"},{"product_id":"128020","title":"Harken 466 25mm Single High Strength Block with Becket","description":"\u003cp\u003eHarken 466 25mm Single High Strength Block with Becket. Harken 1\" High Strength Wire Block with Becket and Closed End - Wire blocks are lightweight, low friction blocks designed to carry wire halyards and control lines on boats of all sizes. This block uses low-friction thrust washers and stainless steel sideplates which give superb chafe resistance.\u003cbr\u003e \u003cbr\u003e When used on the top of the Laser\u003csup\u003e®\u003c\/sup\u003e Vang the primary line can no longer jump the sheave thanks to the closed end design. The kicker Key also fits snugly between the closed cheeks.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eSheave diameter: 25mm\u003c\/li\u003e \t\u003cli\u003eWeight: 29g\u003c\/li\u003e \t\u003cli\u003eMaximum wire diameter: 2mm\u003c\/li\u003e \t\u003cli\u003eMaximum rope diameter: 4mm\u003c\/li\u003e \t\u003cli\u003eShackle pin diameter: 5mm\u003c\/li\u003e \t\u003cli\u003eMaximum working load: 454kg\u003c\/li\u003e \t\u003cli\u003eBreaking load: 907kg\u003c\/li\u003e \u003c\/ul\u003e  \u003chr style=\"border: currentColor; border-image: none; height: 1px; color: rgb(204, 204, 204); background-color: rgb(204, 204, 204);\"\u003e \u003cp\u003eLaser\u003csup\u003e®\u003c\/sup\u003e is a registered trademark owned by Velum Limited and currently licensed for use in Europe to Laser Performance (Europe) Limited. Rooster Sailing Limited is fully independent of both Laser Performance (Europe) Limited and Velum Limited.\u003c\/p\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":37654940057755,"sku":"128020","price":55.93,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/102508.jpg?v=1780691608"},{"product_id":"128025","title":"Harken 461 High Load Ball\/Socket Swivel Base for 12mm Post Blocks","description":"\u003cp\u003eHarken 461 High Load Ball\/Socket Swivel Base for 12mm Post Blocks. The ball-and-socket design lets blocks articulate up to 45 degrees and swivel freely. This base may be fitted with a spring but the block won´t hit the deck without one.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eHeight: 51mm\u003c\/li\u003e \t\u003cli\u003eWeight: 128g\u003c\/li\u003e \t\u003cli\u003eBase diameter: 54mm\u003c\/li\u003e \t\u003cli\u003eInside socket diameter: 12mm\u003c\/li\u003e \t\u003cli\u003ePin diameter: 6mm\u003c\/li\u003e \t\u003cli\u003eMaximum working load: 454kg\u003c\/li\u003e \t\u003cli\u003eBreaking load: 1134kg\u003c\/li\u003e \t\u003cli\u003eUse with 75mm Carbo ratchet block\u003c\/li\u003e \u003c\/ul\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":37654940450971,"sku":"128025","price":91.07,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/102517.jpg?v=1780691608"},{"product_id":"128072","title":"Harken 244 Micro In Line Double Block with V Cleat","description":"\u003cp\u003eHarken 244 Micro In Line Double Block with V Cleat.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eSheave diameter: 22mm\u003c\/li\u003e \t\u003cli\u003eLength: 89mm\u003c\/li\u003e \t\u003cli\u003eWeight: 57mm\u003c\/li\u003e \t\u003cli\u003eMaximum line size: 6mm\u003c\/li\u003e \t\u003cli\u003eShackle pin diameter: 5mm\u003c\/li\u003e \t\u003cli\u003eMaximum working load: 159kg\u003c\/li\u003e \t\u003cli\u003eBreaking load: 544kg\u003c\/li\u003e \u003c\/ul\u003e","brand":"Harken","offers":[{"title":"Default Title","offer_id":37654945759387,"sku":"128072","price":48.16,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/102616.jpg?v=1780691635"},{"product_id":"128192","title":"Allen A2020SC 20mm Single Dynamic Block with Swivel Shackle Head","description":"\u003cp\u003eAllen 2020SC 20mm Single Dynamic Block with Swivel Shackle Head.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eLength:49mm\u003c\/li\u003e \t\u003cli\u003eLine diameter: 2.5-6mm\u003c\/li\u003e \t\u003cli\u003eShackle pin: 4mm\u003c\/li\u003e \t\u003cli\u003eBreaking load: 350kg\u003c\/li\u003e \t\u003cli\u003eMax. dynamic load: 115kg\u003c\/li\u003e \t\u003cli\u003eWeight: 15.4g\u003c\/li\u003e \u003c\/ul\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":37654951461019,"sku":"128192","price":34.4,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/102953_6da03d07-e3e0-46a1-bfe2-278bb8b23ed9.jpg?v=1780691676"},{"product_id":"128234","title":"Ronstan RF56101 Series 55 Orbit Ratchet \u0026 Auto-Ratchet Block","description":"\u003cp\u003eRonstan RF56101 Orbit Ratchet Block. Designed for applications where weight is of paramount importance. The securing loop is easily changed and we suggest that you use either a forged eye or shackle to secure the block as pressed steel fittings can be sharp and will prematurely wear the rope mounting.\u003cbr\u003e \u003cbr\u003e Features:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eAutomatic and Manual ratchet in one block\u003c\/li\u003e \t\u003cli\u003eUp to 20:1 holding power\u003c\/li\u003e \t\u003cli\u003eEasily fitted and securely retained Dyneema Link head\u003c\/li\u003e \t\u003cli\u003eSmooth easing of sheets\u003c\/li\u003e \t\u003cli\u003eHigh performance cleating\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eTechnical:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eSheave Diameter 55mm\u003c\/li\u003e \t\u003cli\u003eMaximum Rope Diameter 10mm\u003c\/li\u003e \t\u003cli\u003eMaximum Working Load 250kg\u003c\/li\u003e \t\u003cli\u003eBreaking Load 500kg\u003c\/li\u003e \t\u003cli\u003eWeight 78g\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eMaterials:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eBall bearings - High compression strength carbon black Acetal\u003c\/li\u003e \t\u003cli\u003eStage 2 bearing - Carbon fibre reinforced, PTFE impregnated Nylon\u003c\/li\u003e \t\u003cli\u003eFrame\/Cheeks - Toughened, glass fibre reinforced Nylon\u003c\/li\u003e \t\u003cli\u003eRope Link: UV stabilised, multi-strand impregmented SK75 Dyneema\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eApplications:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eMainsheet systems on dinghies\u003c\/li\u003e \t\u003cli\u003eSpinnaker sheets on dinghies\u003c\/li\u003e \t\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eSome RT Orbit Blocks™ can be set to Automatic mode or Manual mode to suit the application or user’s preference.\u003c\/p\u003e  \u003cp\u003e\u003cstrong\u003eOPERATION\u003c\/strong\u003e\u003c\/p\u003e  \u003cp\u003e\u003cimg src=\"https:\/\/roostersailingweb.s3-eu-west-2.amazonaws.com\/InformationSheets\/Orbit.jpg\" title=\"Ronstan Orbit Ratchet\"\u003e\u003c\/p\u003e  \u003cp\u003eMANUAL MODE\u003cbr\u003e RT blocks leave the factory in Manual mode, with the black MODE switches on both sides of the block positioned away from the red ON\/OFF knob.\u003c\/p\u003e  \u003cp\u003eUse the red ON\/OFF knob to turn the ratchet ON or OFF.\u003c\/p\u003e  \u003cp\u003eAUTO MODE\u003cbr\u003e With the block in Manual mode, turn the ratchet off by rotating the red ON\/OFF knob to the OFF position.\u003c\/p\u003e  \u003cp\u003eSlide the black MODE switch firmly toward the red ON\/OFF knob until it locks into the recess in the knob. Repeat with the MODE switch on the other side of the block.\u003c\/p\u003e  \u003cp\u003eThe block is now in Auto mode.\u003c\/p\u003e  \u003cp\u003e To return to Manual mode, slide the black MODE switches on both sides of the block firmly away from the red ON\/OFF knob. Now use the red ON\/OFF knob to turn the ratchet ON and OFF.\u003c\/p\u003e  \u003ctable\u003e \t\u003ctbody\u003e \t\t\u003ctr\u003e \t\t\t\u003ctd\u003e\u003cimg src=\"https:\/\/roostersailingweb.s3-eu-west-2.amazonaws.com\/img\/ProdDesc\/225.jpg\"\u003e\u003c\/td\u003e \t\t\t\u003ctd\u003e \t\t\t\u003cp\u003eWe recommend using the RF613S shackle to securely attach the block to the existing deck eye on your boat. This helps the block maintain maximum freedom of movement and reduces the risk of wear on the Dyneema loop due to sharp edges on the deck eye, then use the 8072 Rubber Boot to keep the block upright and provide a neat finish. See related items.\u003c\/p\u003e  \t\t\t\u003cp\u003e \u003c\/p\u003e  \t\t\t\u003cp\u003e \u003c\/p\u003e \t\t\t\u003c\/td\u003e \t\t\u003c\/tr\u003e \t\u003c\/tbody\u003e \u003c\/table\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654956638363,"sku":"128234","price":85.66,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/103002_5cae036f-37e0-4392-a880-8f2e671f09ea.jpg?v=1780691682"},{"product_id":"128245","title":"Optiparts EX1340 Optimist Basic Sprit Block","description":"\u003cp\u003e\u003cspan id=\"product_description\"\u003eThis plain bearing aluminum sheave block is perfect to use on the Silver Optimist mast. Round, fiberglass filled nylon case designed to fit correctly on the round Optimist mast. Stainless steel insert rod moulded in for strength. \u003c\/span\u003e\u003c\/p\u003e","brand":"Optiparts","offers":[{"title":"Default Title","offer_id":37654958342299,"sku":"128245","price":24.3,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/103031.jpg?v=1780691683"},{"product_id":"128251","title":"Ronstan RF55101 Series 55 Orbit Single Block","description":"\u003cp\u003eRonstan RF55101 Orbit Block. Designed for applications where weight is of paramount importance. The securing loop is easily changed and we suggest that you use either a forged eye or shackle to secure the block as pressed steel fittings can be sharp and will prematurely wear the rope mounting.\u003cbr\u003e \u003cbr\u003e General Range Information:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eUltra Lightweight\u003c\/li\u003e \t\u003cli\u003eLow friction 2-stage Orbital ball bearing system\u003c\/li\u003e \t\u003cli\u003eHighest working load in its class\u003c\/li\u003e \t\u003cli\u003eEasily fitted and securely retained Dyneema Link head\u003c\/li\u003e \t\u003cli\u003eLow profile and compact\u003c\/li\u003e \t\u003cli\u003eHigh performance cleating\u003c\/li\u003e \t\u003cli\u003eSheave Diameter 55mm\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eTechnical:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eSheave Diameter 55mm\u003c\/li\u003e \t\u003cli\u003eMaximum Rope Diameter 10mm\u003c\/li\u003e \t\u003cli\u003eMaximum Working Load 500kg\u003c\/li\u003e \t\u003cli\u003eBreaking Load 1000kg\u003c\/li\u003e \t\u003cli\u003eWeight 68g\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eMaterials:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eBall bearings - High compression strength carbon black Acetal\u003c\/li\u003e \t\u003cli\u003eStage 2 bearing - Carbon fibre reinforced, PTFE impregnated Nylon\u003c\/li\u003e \t\u003cli\u003eFrame\/Cheeks - Toughened, glass fibre reinforced Nylon\u003c\/li\u003e \t\u003cli\u003eRope Link: UV stabilised, multi-strand impregmented SK75 Dyneema\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eApplications:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eMainsheet systems on dinghies, sportsboats and small keelboats to 9m (30ft)\u003c\/li\u003e \t\u003cli\u003eSpinnaker sheets on dinghies, sportsboats and small keel boats to 9m (30ft)\u003c\/li\u003e \t\u003cli\u003eHalyard, Vang and Backstay application on boats to 8m (26ft)\u003c\/li\u003e \t\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e \u003c\/ul\u003e  \u003ctable\u003e \t\u003ctbody\u003e \t\t\u003ctr\u003e \t\t\t\u003ctd\u003e\u003cimg src=\"https:\/\/roostersailingweb.s3-eu-west-2.amazonaws.com\/img\/ProdDesc\/225.jpg\"\u003e\u003c\/td\u003e \t\t\t\u003ctd\u003eWe recommend using the RF613S shackle to securely attach the block to the existing deck eye on your boat. This helps the block maintain maximum freedom of movement and reduces the risk of wear on the Dyneema loop due to sharp edges on the deck eye, then use the 8072 Rubber Boot to keep the block upright and provide a neat finish. See related items.\u003c\/td\u003e \t\t\u003c\/tr\u003e \t\u003c\/tbody\u003e \u003c\/table\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654959161499,"sku":"128251","price":47.1,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/103044.jpg?v=1780691687"},{"product_id":"128252","title":"Ronstan RF55111 Series 55 Orbit Single Block with Becket","description":"\u003cp\u003eRonstan RF55111 Orbit Block with becket. Designed for applications where weight is of paramount importance. The securing loop is easily changed and we suggest that you use either a forged eye or shackle to secure the block as pressed steel fittings can be sharp and will prematurely wear the rope mounting.\u003cbr\u003e \u003cbr\u003e General Range Information:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eUltra Lightweight\u003c\/li\u003e \t\u003cli\u003eLow friction 2-stage Orbital ball bearing system\u003c\/li\u003e \t\u003cli\u003eHighest working load in its class\u003c\/li\u003e \t\u003cli\u003eEasily fitted and securely retained Dyneema Link head\u003c\/li\u003e \t\u003cli\u003eLow profile and compact\u003c\/li\u003e \t\u003cli\u003eHigh performance cleating\u003c\/li\u003e \t\u003cli\u003eSheave Diameter 55mm\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eTechnical:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eSheave Diameter 55mm\u003c\/li\u003e \t\u003cli\u003eMaximum Rope Diameter 10mm\u003c\/li\u003e \t\u003cli\u003eMaximum Working Load 500kg\u003c\/li\u003e \t\u003cli\u003eBreaking Load 1000kg\u003c\/li\u003e \t\u003cli\u003eWeight 75g\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eMaterials:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eBall bearings - High compression strength carbon black Acetal\u003c\/li\u003e \t\u003cli\u003eStage 2 bearing - Carbon fibre reinforced, PTFE impregnated Nylon\u003c\/li\u003e \t\u003cli\u003eFrame\/Cheeks - Toughened, glass fibre reinforced Nylon\u003c\/li\u003e \t\u003cli\u003eRope Link: UV stabilised, multi-strand impregmented SK75 Dyneema\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eApplications:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eMainsheet systems on dinghies, sportsboats and small keelboats to 9m (30ft)\u003c\/li\u003e \t\u003cli\u003eSpinnaker sheets on dinghies, sportsboats and small keel boats to 9m (30ft)\u003c\/li\u003e \t\u003cli\u003eHalyard, Vang and Backstay application on boats to 8m (26ft)\u003c\/li\u003e \t\u003cli\u003eControl line applications on larger yachts\u003c\/li\u003e \u003c\/ul\u003e  \u003ctable\u003e \t\u003ctbody\u003e \t\t\u003ctr\u003e \t\t\t\u003ctd\u003e\u003cimg src=\"https:\/\/roostersailingweb.s3-eu-west-2.amazonaws.com\/img\/ProdDesc\/225.jpg\"\u003e\u003c\/td\u003e \t\t\t\u003ctd\u003eWe recommend using the RF613S shackle to securely attach the block to the existing deck eye on your boat. This helps the block maintain maximum freedom of movement and reduces the risk of wear on the Dyneema loop due to sharp edges on the deck eye, then use the 8072 Rubber Boot to keep the block upright and provide a neat finish. See related items.\u003c\/td\u003e \t\t\u003c\/tr\u003e \t\u003c\/tbody\u003e \u003c\/table\u003e  \u003cp\u003e \u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654959227035,"sku":"128252","price":49.63,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/103045.jpg?v=1780691688"},{"product_id":"128260","title":"Allen A2030SC 30mm Single Dynamic Block with Swivel Shackle Head","description":"\u003cp\u003eAllen 2030SC 30mm Single Dynamic Block with Swivel Shackle Head.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eLength: 68mm\u003c\/li\u003e \t\u003cli\u003eLine Diameter: 5-8mm\u003c\/li\u003e \t\u003cli\u003eShackle pin: 4mm\u003c\/li\u003e \t\u003cli\u003eBreaking load: 450kg\u003c\/li\u003e \t\u003cli\u003eMax. dynamic load: 140kg\u003c\/li\u003e \t\u003cli\u003eWeight: 36g\u003c\/li\u003e \u003c\/ul\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":37654959849627,"sku":"128260","price":42.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/103053_a9ea8fcc-8729-4bd0-8cac-0552d729ba20.jpg?v=1780691690"},{"product_id":"128302","title":"Ronstan RF20151 20mm Cheek Block","description":"\u003cp\u003eRonstan RF20151 20mm Cheek Block\u003cbr\u003e \u003cbr\u003e Precision moulded Acetal sheaves running on stainless steel or Torlon® ball bearings provide high performance \u0026amp; low friction.Applications include:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eDinghy control lines\u003c\/li\u003e \t\u003cli\u003eDinghy vangs\u003c\/li\u003e \t\u003cli\u003eCunninghams\u003c\/li\u003e \t\u003cli\u003eTraveller controls\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eMaterials:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eStainless steel ball bearings\u003c\/li\u003e \t\u003cli\u003eUV stabilised Acetal sheave\u003c\/li\u003e \t\u003cli\u003eGrade 316 stainless steel load strap and head fitting\u003c\/li\u003e \t\u003cli\u003eImpact and UV resistant, fibre reinforced Nylon cheeks\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003eSpecification:\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eSheath diameter 20mm\u003c\/li\u003e \t\u003cli\u003eMaximum rope diameter 6mm\u003c\/li\u003e \t\u003cli\u003eMaximum working load 250kg\u003c\/li\u003e \t\u003cli\u003eBreaking load 550kg\u003c\/li\u003e \t\u003cli\u003eWeight 14g\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e \u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654964535451,"sku":"128302","price":14.89,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/103107.jpg?v=1780691708"},{"product_id":"128303","title":"Ronstan RF9004-08 Dyneema Link - For 55mm Single Orbit Blocks","description":"\u003cp\u003eRonstan RF9004-08 replacement Dyneema link for the following Ronstan 40mm and 55mm Orbit blocks.\u003cbr\u003e\n\u003cbr\u003e\nRF45201, RF45211, RF45301, RF45311, RF55101,RF55111, RF55501, RF55511,RF55521, RF55531, RF56101, RF56111, RF56121, RF56131.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNOTE\u003c\/strong\u003e: The Link is 80mm long\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654964699291,"sku":"128303","price":11.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/103108_f339a068-b43e-4cf5-ac3a-d257637585ff.jpg?v=1780691709"},{"product_id":"128304","title":"Ronstan RF50001 Retainer Clip - For 55mm Single Orbit Blocks - 2 Pack","description":"\u003cp\u003eRonstan RF50001 Retainer Clip - For 55mm Single Orbit Blocks - 2 Pack.\u003cbr\u003e\n\u003cbr\u003e\nThis is a pack of 2 replacement retaining clips for the 55mm Orbit blocks. This fits over the top of the block and is only removed when the Dyneema link needs replacing.\u003c\/p\u003e\n\n\u003cp\u003eThis product suits : Ronstan RF55101, RF55111, RF55501,RF55511, RF55521, RF55531, RF56101, RF56111, RF56121, RF56131\u003c\/p\u003e\n\n\u003cp\u003eMade from Black Nylon and for a sheave diameter 55mm\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654964994203,"sku":"128304","price":7.06,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/103109.jpg?v=1780691710"},{"product_id":"128305","title":"Ronstan RF2455 Stand - Up Base - For 55mm Orbit Blocks for Laser\/ILCA Style Deck Eye 44mm centres","description":"\u003cp\u003eA stand-up kit featuring a clatter-free rubber boot. You can attach the Dyneema link so that the block is aligned with the stand-up base or across it. It’s a neat, low-profile solution which allows full articulation.\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":37654965125275,"sku":"128305","price":17.47,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/103111_215ee56e-7945-4484-8619-ae976db0c6ac.jpg?v=1780691710"},{"product_id":"128366","title":"Allen A4379HK 25mm High Tension Block with Hook","description":"\u003cp\u003eAllen 4379HK 25mm High Tension Block with Hook.Specifically designed to be used where wire and\/or Dyneema lines are loaded under high tension. Engineered using 316 steel and the inner ball race sheave is CNC machined from solid, giving unfailing results every time.\u003c\/p\u003e  \u003cul\u003e \t\u003cli\u003eSheave diameter: 25mm\u003c\/li\u003e \t\u003cli\u003eLength:105mm\u003c\/li\u003e \t\u003cli\u003eLine diameter: 2-6mm\u003c\/li\u003e \t\u003cli\u003eBreaking load: 500kg\u003c\/li\u003e \t\u003cli\u003eWeight: 81g\u003c\/li\u003e \u003c\/ul\u003e  \u003cp\u003e \u003c\/p\u003e","brand":"Allen","offers":[{"title":"Default Title","offer_id":37654979772571,"sku":"128366","price":51.58,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/103203_n.jpg?v=1780691753"},{"product_id":"128371","title":"Selden 505-079-01 S\/S Ball Bearing Spinnaker Box","description":"\u003cp\u003e505-079-01 - Selden Stainless steel ball bearing spinnaker and topping lift box.\u003c\/p\u003e","brand":"Selden","offers":[{"title":"Default Title","offer_id":37654979838107,"sku":"128371","price":34.27,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0283\/5087\/3732\/files\/103213.jpg?v=1780691758"}],"url":"https:\/\/www.roostersailing.com\/collections\/chandlery-boat-hardware-blocks-and-ratchets.oembed?page=8","provider":"Rooster Sailing Ltd","version":"1.0","type":"link"}