{"product_id":"lewmar-60mm-synchro-single-block-becket-black-29926004","title":"Lewmar 60mm Synchro Single Block with Becket – Black | 29926004","description":"\u003cp\u003eThe \u003cstrong\u003eLewmar 60mm Synchro Single Block with Becket\u003c\/strong\u003e is a precision-engineered sailing block designed for smooth, low-friction line handling in performance and cruising applications. The integrated becket provides a fixed attachment point at the base of the block, enabling multi-part purchase systems without additional hardware.\u003c\/p\u003e\n\n\u003cp\u003eBuilt with a high-density, free-spin plain bearing and a self-aligning head, this block reduces friction and maintains efficiency even as lead angles shift under load. The patented shackle post lock makes rigging fast and secure, while stainless steel straps and glass-fibre reinforced cheeks deliver the durability needed for saltwater use.\u003c\/p\u003e\n\n\u003ch2\u003eCompatible Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eLower block in 2:1 or 3:1 mainsheet and purchase systems\u003c\/li\u003e\n\u003cli\u003eVang and traveller control systems requiring a becket attachment\u003c\/li\u003e\n\u003cli\u003eSpinnaker and gennaker sheet lead blocks\u003c\/li\u003e\n\u003cli\u003eRunning rigging on performance monohulls and cruiser-racers\u003c\/li\u003e\n\u003cli\u003eSuitable for 5\/16\" to 3\/8\" (8–10mm) line\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSheave Diameter:\u003c\/strong\u003e 60mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Single with Becket\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLine Size:\u003c\/strong\u003e 5\/16\" – 3\/8\" (8–10mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColour:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStraps:\u003c\/strong\u003e Stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheeks:\u003c\/strong\u003e Glass-fibre reinforced\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing:\u003c\/strong\u003e High-density free-spin plain bearing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHead:\u003c\/strong\u003e Self-aligning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 29926004\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eRelated Products\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-60mm-synchro-block-single-black-5-16-3-8-line\"\u003eLewmar 60mm Synchro Single Block – Black | 5\/16\"–3\/8\" Line\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-60mm-synchro-block-double-black-5-16-3-8-line\"\u003eLewmar 60mm Synchro Double Block – Black | 5\/16\"–3\/8\" Line\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-60mm-synchro-block-double-with-becket-black-5-16-3-8-line\"\u003eLewmar 60mm Synchro Double Block with Becket – Black | 5\/16\"–3\/8\" Line\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-60mm-synchro-halyard-block-black-29926021\"\u003eLewmar 60mm Synchro Halyard Block – Black | 29926021\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eParts Desk Insights\u003c\/h2\u003e\n\u003cp\u003eThe single-with-becket configuration is the workhorse of 2:1 purchase systems — most commonly used as the lower (moving) block in a mainsheet or vang setup, where the becket anchors the standing end of the line. At 60mm, this block is well-matched to 8–10mm control lines on boats in the 30–40ft range. If you're building a complete purchase system, pair it with the \u003ca href=\"\/products\/lewmar-60mm-synchro-block-double-black-5-16-3-8-line\"\u003eLewmar 60mm Synchro Double Block\u003c\/a\u003e at the fixed end for a clean, efficient 3:1 system.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51250740461604,"sku":"239-29926004","price":81.57,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/8eee6684-2062-4ac7-b298-6860b92697a5.png?v=1787033447","url":"https:\/\/marisolmarine.com\/products\/lewmar-60mm-synchro-single-block-becket-black-29926004","provider":"Marisol Marine Company","version":"1.0","type":"link"}