{"title":"Ronstan Single Blocks","description":"\u003cp\u003eRonstan single blocks for simple \u0026amp; effective line redirection on sailboats. \u003ca href=\"#seo-description\"\u003eClick here to read more.\u003c\/a\u003e\u003c\/p\u003e","products":[{"product_id":"ron-rf15101","title":"Ronstan Series 15 BB Block, Single Loop Top","description":"\u003cp\u003eRonstan's Ball Bearing 15mm, conceived and engineered for the demands of competitive sailing in skiff, Olympic and sports boats classes, have rapidly become the international choice for high performance hardware.\u003c\/p\u003e\u003cp\u003eOur Part # RON-RF15101 | Ronstan Part # RF15101\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347523445042,"sku":"RON-RF15101","price":13.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RON-RF15101.jpg?v=1728025401"},{"product_id":"ronrf20101","title":"Ronstan Series 20 BB Block, Single Loop Top","description":"\u003cp\u003eThe Ronstan Series 20 BB Block, Single Loop Top #RF20101 is perfect for sailors looking for efficiency and reliability. It's designed with precision-moulded Acetal sheaves and operates on stainless steel or Torlon ball bearings, ensuring smooth performance and minimal friction. You can easily align it with a shackle in two different planes for optimal use.\u003c\/p\u003e\u003cp\u003eConstructed for efficiency, this block features a compact single block design, making it an excellent choice for various sailing applications. The high-performance materials ensure longevity, while the design offers compatibility with numerous setups, making it a versatile addition to your sailing gear.\u003c\/p\u003e\u003cp\u003eUsage\u003c\/p\u003e\u003cp\u003eIdeal for situations where reliable single blocks are needed, such as small sailboat rigging or wherever compact high-performance blocks are essential.\u003c\/p\u003e\u003cp\u003eOur Part #RONRF20101 | Mfr. Part #RF20101\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347523477810,"sku":"RONRF20101","price":13.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF20101.jpg?v=1735835528"},{"product_id":"ronrf280","title":"Ronstan Series 29 Block Loop Top","description":"\u003cp\u003eStainless steel cheeks and Acetal sheaves ensure a long service life with virtually no maintenance. Hollow rivets in the block heads can be fitted with shackles, which can also be used to add a becket for extra purchase.\u003c\/p\u003e\u003cp\u003eOur Part # RONRF280 | Ronstan Part # RF280\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347529933106,"sku":"RONRF280","price":12.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF280.jpg?v=1735835563"},{"product_id":"ronrf25109","title":"Ronstan Series 20 BB Orbit Block, Single, Lashing, Becket","description":"\u003cp\u003eThe incredible Series 20 Orbit Block™ is capable of loads up to 250kg (550lb) while weighing a mere 9 grams. It's so light that it needs to be lashed down.\u003c\/p\u003e\u003cp\u003eN.B. Block must be lashed through hub. M.W.L. \u0026amp; B.L. are dependent on the strength of lashing. Knots, splices, stitching will generally have a lower B.L. than the line itself.\u003c\/p\u003e\u003cp\u003eOur Part # RONRF25109 | Ronstan Part # RF25109\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347535274290,"sku":"RONRF25109","price":15.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF25109.jpg?v=1735835535"},{"product_id":"ron-rf15111","title":"Ronstan Series 15 BB Block, Single Loop Top Becket","description":"\u003cp\u003eRonstan's Ball Bearing 15mm, conceived and engineered for the demands of competitive sailing in skiff, Olympic and sports boats classes, have rapidly become the international choice for high performance hardware.\u003c\/p\u003e\u003cp\u003eOur Part # RON-RF15111 | Ronstan Part # RF15111\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347536290098,"sku":"RON-RF15111","price":15.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RON-RF15111.jpg?v=1728040006"},{"product_id":"ronrf21107","title":"Ronstan Series 20 BB Block, Single, Suits 10mm (3\/8\") Webbing","description":"\u003cp\u003eRonstan's Ball Bearing 20mm, conceived and engineered for the demands of competitive sailing in skiff, Olympic and sports boats classes, have rapidly become the international choice for high performance hardware.\u003c\/p\u003e\u003cp\u003eOur Part # RONRF21107 | Ronstan Part # RF21107\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347536355634,"sku":"RONRF21107","price":15.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF21107.jpg?v=1735835564"},{"product_id":"ronrf666","title":"Ronstan Series 19 Block Loop Top","description":"\u003cp\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies.\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters etc on larger yachts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eU.V. stabilised Acetal sheaves.\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e Our Part # RONRF666 | Ronstan Part # RF666\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347537142066,"sku":"RONRF666","price":13.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF666.jpg?v=1735835452"},{"product_id":"ronrf661","title":"Ronstan Series 19 Block, Tube Rivet","description":"\u003cp\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies.\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters etc on larger yachts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eU.V. stabilised Acetal sheaves.\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e Our Part # RONRF661 | Ronstan Part # RF661\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347537207602,"sku":"RONRF661","price":13.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF661.jpg?v=1728038573"},{"product_id":"ronrf571","title":"Ronstan Series 25 Block Loop Top","description":"\u003cp\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eTypically used in dinghy spars for control lines such as outhauls.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eU.V. stabilised Acetal sheave\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load housing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e Our Part # RONRF571 | Ronstan Part # RF571\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347537240370,"sku":"RONRF571","price":13.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF571.jpg?v=1735835480"},{"product_id":"ronrf20111","title":"Ronstan Series 20 BB Block, Single Loop Top Becket","description":"\u003cp\u003ePrecision moulded Acetal sheaves running on stainless steel or Torlon ball bearings provide high performance \u0026amp; low friction. Can be fitted with a shackle in either of two planes to allow correct alignment of the block.\u003c\/p\u003e\u003cp\u003eOur Part # RONRF20111 | Ronstan Part # RF20111\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347540484402,"sku":"RONRF20111","price":16.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF20111.jpg?v=1735835559"},{"product_id":"ronrf20184","title":"Ronstan Series 20 BB Block, Single Loop Mount","description":"\u003cp\u003ePrecision moulded Acetal sheaves running on stainless steel or Torlon ball bearings provide high performance \u0026amp; low friction.\u003c\/p\u003e\u003cp\u003eOur Part # RONRF20184 | Ronstan Part # RF20184\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347565125938,"sku":"RONRF20184","price":21.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF20184.jpg?v=1735835504"},{"product_id":"ron-rf30101","title":"Ronstan Series 30 BB Block, Single Loop Top","description":"\u003cp\u003eSheaves 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. Can be fitted with a shackle in either of two planes to allow correct alignment of the block.\u003c\/p\u003e\u003cp\u003eOur Part # RON-RF30101 | Ronstan Part # RF30101\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347570532658,"sku":"RON-RF30101","price":22.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RON-RF30101.jpg?v=1728063083"},{"product_id":"ronrf681","title":"Ronstan Series 29 Block With Becket","description":"\u003cp\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies.\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters etc on larger yachts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eU.V. stabilised Acetal sheaves.\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e Our Part # RONRF681 | Ronstan Part # RF681\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347573743922,"sku":"RONRF681","price":19.47,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF681.jpg?v=1735835445"},{"product_id":"ron-rf15100","title":"Ronstan Series 15 BB Block, Single Swivel Head","description":"\u003cp\u003eRonstan's Ball Bearing 15mm, conceived and engineered for the demands of competitive sailing in skiff, Olympic and sports boats classes, have rapidly become the international choice for high performance hardware.\u003c\/p\u003e\u003cp\u003eOur Part # RON-RF15100 | Ronstan Part # RF15100\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347576725810,"sku":"RON-RF15100","price":23.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RON-RF15100.jpg?v=1728051720"},{"product_id":"ronrf20100","title":"Ronstan Series 20 BB Block, Single","description":"\u003cp\u003ePrecision moulded Acetal sheaves running on stainless steel or Torlon ball bearings provide high performance \u0026amp; low friction.\u003c\/p\u003e\u003cp\u003eOur Part # RONRF20100 | Ronstan Part # RF20100\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347576758578,"sku":"RONRF20100","price":23.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF20100.jpg?v=1735835510"},{"product_id":"ronrf41101","title":"Ronstan Series 40 AP Block, Single Loop Top","description":"\u003cp\u003eAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.\u003c\/p\u003e\u003cp\u003eOur Part # RONRF41101 | Ronstan Part # RF41101\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347581182258,"sku":"RONRF41101","price":20.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF41101.jpg?v=1735835515"},{"product_id":"ronrf185","title":"Ronstan Series 29 Single Block","description":"\u003cp\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies.\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters etc on larger yachts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eU.V. stabilised Acetal sheaves.\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e Our Part # RONRF185 | Ronstan Part # RF185\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347581215026,"sku":"RONRF185","price":20.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF185.jpg?v=1735835527"},{"product_id":"ron-rf34108","title":"Ronstan Series 30 BB Block, Single Loop Top, Clevis Pin Top","description":"\u003cp\u003eAlloy sheaves running on Torlon ball bearings provide high performance \u0026amp; low friction.\u003c\/p\u003e\u003cp\u003eOur Part # RON-RF34108 | Ronstan Part # RF34108\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347583770930,"sku":"RON-RF34108","price":98.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RON-RF34108.jpg?v=1728028574"},{"product_id":"ronrf35100","title":"Ronstan Series 30 BB OrbitBlock, Single, Swivel Shackle Head, Becket","description":"\u003cp\u003eBall Bearing Orbit Blocks boast the highest strength-to-weight ratio available. This is achieved through all-composite reinforced polymer materials and multiple attachment options. Their precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fibre-reinforced composites in the block head, cleat arms and beckets.\u003c\/p\u003e\u003cp\u003eMainsheet systems and spinnaker sheets on dinghies to 5 m (16 ft), halyard, vang and backstay applications on boats to 5 m (16 ft), control line applications on larger yachts.  Our Part # RONRF35100 | Ronstan Part # RF35100\u003c\/p\u003e\u003cp\u003eMainsheet systems and spinnaker sheets on dinghies to 5 m (16 ft), halyard, vang and backstay applications on boats to 5 m (16 ft), control line applications on larger yachts.\u003c\/p\u003e\u003cp\u003eOur Part # RONRF35100 | Ronstan Part # RF35100\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347584688434,"sku":"RONRF35100","price":24.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF35100.jpg?v=1735835516"},{"product_id":"ronrf663","title":"Ronstan Series 19 Block Ferrule Top","description":"\u003cp\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies.\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters etc on larger yachts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eU.V. stabilised Acetal sheaves.\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e Our Part # RONRF663 | Ronstan Part # RF663\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347589505330,"sku":"RONRF663","price":21.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF663.jpg?v=1735835471"},{"product_id":"ronrf572","title":"Ronstan Series 25 Block \u0026 Becket Loop Top","description":"\u003cp\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eTypically used in dinghy spars for control lines such as outhauls.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eU.V. stabilised Acetal sheave\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel load housing.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e Our Part # RONRF572 | Ronstan Part # RF572\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347594256690,"sku":"RONRF572","price":21.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF572.jpg?v=1735835445"},{"product_id":"ronrf573","title":"Ronstan Series 25 Swivel Block","description":"\u003cp\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies.\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters etc on larger yachts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eU.V. stabilised Acetal sheaves.\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e Our Part # RONRF573 | Ronstan Part # RF573\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347594354994,"sku":"RONRF573","price":21.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF573.jpg?v=1735835467"},{"product_id":"ronrf188","title":"Ronstan Series 29 Single Becket Block","description":"\u003cul\u003e\n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies.\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters etc on larger yachts. \u003c\/li\u003e\n\u003cli\u003eU.V. stabilised Acetal sheaves.\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks\u003c\/li\u003e\n\u003cli\u003eLight Weight: durable construction.\u003c\/li\u003e\n\u003cli\u003eEconomical.\u003c\/li\u003e\n\u003cli\u003eMaintenance free.\u003c\/li\u003e \u003c\/ul\u003e\u003cp\u003e Our Part # RONRF188 | Ronstan Part # RF188\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347596222770,"sku":"RONRF188","price":21.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF188.jpg?v=1735835508"},{"product_id":"ronrf20180","title":"Ronstan Series 20 BB Block, Hook","description":"\u003cp\u003ePrecision moulded Acetal sheaves running on stainless steel or Torlon ball bearings provide high performance \u0026amp; 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low friction. 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Can be fitted with a shackle in either of two planes to allow correct alignment of the block.\u003c\/p\u003e\u003cp\u003eOur Part # RON-RF30101HL | Ronstan Part # RF30101HL\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347610083634,"sku":"RON-RF30101HL","price":28.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RON-RF30101HL.jpg?v=1728047675"},{"product_id":"ronrf41111","title":"Ronstan Series 40 AP Block, Single Loop Top, Becket","description":"\u003cp\u003eAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.Becket pin is removeable so line can be spliced prior to fitting and is ingeniously locked into position without the use of a clevis pin, split ring or tools.\u003c\/p\u003e\u003cp\u003eOur Part # RONRF41111 | Ronstan Part # RF41111\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347630891314,"sku":"RONRF41111","price":31.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF41111.jpg?v=1735835561"},{"product_id":"ronrf41100","title":"Ronstan Series 40 AP Block, Single","description":"\u003cp\u003eAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. 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Our Part # RONRF35100A | Ronstan Part # RF35100A\u003c\/p\u003e\u003cp\u003eMainsheet systems and spinnaker sheets on dinghies to 5 m (16 ft), halyard, vang and backstay applications on boats to 5 m (16 ft), control line applications on larger yachts.\u003c\/p\u003e\u003cp\u003eOur Part # RONRF35100A | Ronstan Part # RF35100A\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347645243698,"sku":"RONRF35100A","price":33.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF35100A.jpg?v=1735835522"},{"product_id":"ronrf41110","title":"Ronstan Series 40 AP Block, Single Becket","description":"\u003cp\u003eAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. 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Their precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fibre-reinforced composites in the block head, cleat arms and beckets.\u003c\/p\u003e\u003cp\u003eMainsheet systems on spinnaker sheet on dinghies to 5 m (16 ft), spinnaker sheets on dinghies, sportsboats and small keel boats to 5 m (16 ft), halyard, vang and backstay applications on boats to 8 m (26 ft), control line applications on larger yachts. Our Part # RONRF45110 | Ronstan Part # RF45110\u003c\/p\u003e\u003cp\u003eMainsheet systems on spinnaker sheet on dinghies to 5 m (16 ft), spinnaker sheets on dinghies, sportsboats and small keel boats to 5 m (16 ft), halyard, vang and backstay applications on boats to 8 m (26 ft), control line applications on larger yachts.\u003c\/p\u003e\u003cp\u003eOur Part # RONRF45110 | Ronstan Part # RF45110\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347645342002,"sku":"RONRF45110","price":34.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF45110.jpg?v=1735835541"},{"product_id":"ronrf45101","title":"Ronstan Series 40 BB Orbit Block, Single, Link Head","description":"\u003cp\u003eLightweight\u003c\/p\u003e\u003cp\u003eKilogram for kilogram of working load, BB and RT Orbit Blocks's are the world's lightest. 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The proven Ronstan 2-stage bearing system features high compression grade acetal ball bearings and a secondary full-contact bearing. This gives minimum friction across the full working load range.\u003c\/p\u003e\u003cp\u003eDyneema link specialties\u003c\/p\u003e\u003cp\u003eTo gain peak performance, we engineered out the heavy steel load straps, head post, shackle, full-length fasteners, and cleating accessories. Through extensive research and development, we replaced virtually all metal components with high-tech polymers and fibre equivalents. The Dyneema Link is produced from FSE Robline SK75 fibre, which is 10 times stronger and lighter than steel, and provides the final connection from the block to the load point.\u003c\/p\u003e\u003cp\u003eOur Part # RONRF45101 | Ronstan Part # RF45101\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347645505842,"sku":"RONRF45101","price":33.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF45101.jpg?v=1728016065"},{"product_id":"ronrf470","title":"Ronstan Series 29 Single Block Ferrule Eye Becket","description":"\u003cp\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies.\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters etc on larger yachts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eU.V. stabilised Acetal sheaves.\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e Our Part # RONRF470 | Ronstan Part # RF470\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347646816562,"sku":"RONRF470","price":29.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF470.jpg?v=1735835462"},{"product_id":"ronrf662","title":"Ronstan Series 19 Block Double, Tube Rivet","description":"\u003cp\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies.\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters etc on larger yachts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eU.V. stabilised Acetal sheaves.\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e Our Part # RONRF662 | Ronstan Part # RF662\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347651076402,"sku":"RONRF662","price":29.77,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF662.jpg?v=1735835436"},{"product_id":"ronrf51101","title":"Ronstan Series 50 AP Block, Single Loop Top","description":"\u003cp\u003eAll purpose (AP) blocks are a great all around solution. Self-lubricating Acetal polymer sheaves running on polished stainless steel races perform equally well with dynamic loads and high static loads. For durability and a long service life, these blocks are the right choice for sheets, halyards and control line applications for cruising and racing.\u003c\/p\u003e\u003cp\u003eOur Part # RONRF51101 | Ronstan Part # RF51101\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347652682034,"sku":"RONRF51101","price":34.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF51101.jpg?v=1735835484"},{"product_id":"ronrf48109","title":"Ronstan S40 BB Orbit Block,Single,Becket Option,Lashing","description":"\u003cp\u003eThe new Series 40 ball bearing Orbit Blocks provide the perfect balance of strength, performance, and reliability. They offer class-leading dynamic and static load ratings, the highest available in this size of performance blocks. Lightweight and strong toughened glass fibre reinforced nylon cheeks replace stainless steel straps used in traditional utility blocks - the perfect balance of performance and reliability. As well as traditional single swivel blocks, the range also includes single and double sheave lashing or soft attachment options through to multiple sheave blocks including those with quad and quin sheaves. The range is extremely versatile allowing a multitude of possible systems right up to a 12:1 purchase mainsheet system for off-the-beach performance catamarans.\u003c\/p\u003e\u003cp\u003eBall Bearing versions incorporate our 2-stage bearing system using ball bearings to minimise friction and a secondary full-contact bearing to maintain low friction across the full working load range.\u003c\/p\u003e\u003cp\u003eOur Part # RONRF48109| Ronstan Part # RF48109\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347654058290,"sku":"RONRF48109","price":35.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF48109.jpg?v=1728052517"},{"product_id":"ronrf467","title":"Ronstan Series 29 Single Block Swivel ShackleTop","description":"\u003cp\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies.\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters etc on larger yachts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eU.V. stabilised Acetal sheaves.\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e Our Part # RONRF467 | Ronstan Part # RF467\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347655270706,"sku":"RONRF467","price":30.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF467.jpg?v=1735835490"},{"product_id":"ron-rf30100hl","title":"Ronstan Series 30 HL Block, Single","description":"\u003cp\u003eIdeal for high load applications. Wear resistant sheave material, in lightweight, self lubricating polymer, is suitable for use with rope or wire.\u003c\/p\u003e\u003cp\u003eOur Part # RON-RF30100HL | Ronstan Part # RF30100HL\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347663921458,"sku":"RON-RF30100HL","price":36.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RON-RF30100HL.jpg?v=1728044516"},{"product_id":"ron-rf30111","title":"Ronstan Series 30 BB Block, Single Loop Top Becket","description":"\u003cp\u003eSheaves 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. Can be fitted with a shackle in either of two planes to allow correct alignment of the block.\u003c\/p\u003e\u003cp\u003eOur Part # RON-RF30111 | Ronstan Part # RF30111\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347672670514,"sku":"RON-RF30111","price":37.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RON-RF30111.jpg?v=1728016852"},{"product_id":"ronrf35100d","title":"Ronstan Series 30 OrbitBlock, Single, Swivel Shackle Head, Becket","description":"\u003cp\u003eBall Bearing Orbit Blocks boast the highest strength-to-weight ratio available. This is achieved through all-composite reinforced polymer materials and multiple attachment options.\u003c\/p\u003e\u003cp\u003eTheir precision design provides the optimum number of ball bearings for minimum friction while weight reduction is achieved through the use of fibre-reinforced composites in the block head, cleat arms and beckets.\u003c\/p\u003e\u003cp\u003eOur Part # RONRF35100D | Ronstan Part # RF35100D\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347684073778,"sku":"RONRF35100D","price":39.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF35100D.jpg?v=1735835498"},{"product_id":"ronrf20101hl","title":"Ronstan Series 20 HL Block, Single Loop Top","description":"\u003cp\u003eIdeal for high load applications. Wear resistant sheave material, in lightweight, self lubricating polymer, is suitable for use with rope or wire. Can be fitted with a shackle in either of two planes to allow correct alignment of the block.\u003c\/p\u003e\u003cp\u003eOur Part # RONRF20101HL | Ronstan Part # RF20101HL\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347684335922,"sku":"RONRF20101HL","price":28.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF20101HL.jpg?v=1735835530"},{"product_id":"ronrf443","title":"Ronstan Series 29 Single Block Swivel Ring Top","description":"\u003cp\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies.\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters etc on larger yachts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eU.V. stabilised Acetal sheaves.\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e Our Part # RONRF443 | Ronstan Part # RF443\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347699212594,"sku":"RONRF443","price":34.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF443.jpg?v=1735835541"},{"product_id":"ronrf51100","title":"Ronstan Series 50 AP Block, Single","description":"\u003cp\u003eThe Ronstan Series 50 AP Block, Single #RF51100 is your go-to solution for versatile sailing needs. It's designed for both cruising and racing, providing consistent performance whether you're dealing with dynamic or static loads. You'll appreciate its self-lubricating acetal polymer sheaves and durable construction.\u003c\/p\u003e\u003cp\u003eThis single block is crafted with durability in mind, featuring long-lasting materials that stand up to the demands of sailing. Its polished stainless steel and acetal components ensure a reliable and efficient performance. Ideal for sheets, halyards, and control line applications, this block is compatible with various sailing gear setups.\u003c\/p\u003e\u003cp\u003eUsage\u003c\/p\u003e\u003cp\u003ePerfect for both cruising and racing scenarios, this block excels in managing sheets and halyards, offering dependable performance whether you're out for a leisurely sail or in the heat of a race.\u003c\/p\u003e\u003cp\u003eOur Part #RONRF51100 | Mfr. Part #RF51100\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347705667890,"sku":"RONRF51100","price":36.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF51100.jpg?v=1735835465"},{"product_id":"ronrf567","title":"Ronstan Series 29 Single Block Swivel ShackleTop Becket","description":"\u003cp\u003e\u003cb\u003eApplications:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eVang, cunningham and trapeze retriever systems on dinghies.\u003c\/li\u003e\n\u003cli\u003eLeech line tackles, bunk adjusters etc on larger yachts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eMaterials:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e          \n\u003cli\u003eU.V. stabilised Acetal sheaves.\u003c\/li\u003e\n\u003cli\u003eGrade 316 stainless steel cheeks.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e Our Part # RONRF567 | Ronstan Part # RF567\u003c\/p\u003e","brand":"Ronstan","offers":[{"title":"Default Title","offer_id":49347714187570,"sku":"RONRF567","price":37.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0879\/4908\/2930\/files\/RONRF567.jpg?v=1735835451"},{"product_id":"ron-rf40110","title":"Ronstan Series 40 BB Block, Single, Becket","description":"\u003cp\u003eSheaves running on Acetal or Torlon ® ball bearings provide high performance \u0026amp; low friction. 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