{"product_id":"lewmar-60mm-synchro-halyard-block-black-29926021","title":"Lewmar 60mm Synchro Halyard Block – Black | 29926021","description":"\u003ch2\u003eLewmar 60mm Synchro Halyard Block – Black\u003c\/h2\u003e\u003cp\u003eThe Lewmar Synchro 60mm Halyard Block is a dedicated single-sheave block designed for halyard applications where smooth, low-friction line handling under load is the priority. The halyard-specific head geometry is optimized for the lead angles and dynamic loads common at the mast, keeping the line running cleanly whether you’re hoisting or lowering sail.\u003c\/p\u003e\u003cp\u003eBuilt on Lewmar’s Synchro platform, it combines a high-density free-spin bearing, stainless steel strap, and glass-fiber reinforced cheeks for reliable performance across a full season of sailing.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 29926021\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSheave Diameter:\u003c\/strong\u003e 60 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Single sheave, halyard head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLine Diameter:\u003c\/strong\u003e 5\/16\" – 3\/8\" (8 mm – 10 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 743683220227\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHalyard-optimized head geometry — designed for mast-top and mast-base lead angles\u003c\/li\u003e\n\u003cli\u003eHigh-density free-spin bearing — smooth, low-friction operation under load\u003c\/li\u003e\n\u003cli\u003eSelf-aligning head reduces friction and line wear\u003c\/li\u003e\n\u003cli\u003eStainless steel strap for strength and corrosion resistance\u003c\/li\u003e\n\u003cli\u003eGlass-fiber reinforced cheeks — prevent line wedging under load\u003c\/li\u003e\n\u003cli\u003ePatented shackle post lock for secure, easy attachment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMain halyard and jib halyard systems\u003c\/li\u003e\n\u003cli\u003eMast-top and mast-base halyard lead blocks\u003c\/li\u003e\n\u003cli\u003eSpinnaker halyard applications\u003c\/li\u003e\n\u003cli\u003eControl lines requiring a dedicated 60mm single block with halyard-optimized geometry\u003c\/li\u003e\n\u003cli\u003ePerformance cruising and racing sailboats using 5\/16\"–3\/8\" line\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eRelated Products\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-60mm-synchro-triple-block-becket-cam-black-29926010bk\"\u003eLewmar 60mm Synchro Triple Block with Becket \u0026amp; Cam – Black\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-60mm-synchro-block-triple-black-5-16-3-8-line\"\u003eLewmar 60mm Synchro Triple Block – Black\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-50mm-synchro-double-block-becket-black-29925005bk\"\u003eLewmar 50mm Synchro Double Block with Becket – Black\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-72mm-synchro-block-halyard-black-3-8-1-2-line\"\u003eLewmar 72mm Synchro Halyard Block – Black\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-72mm-synchro-fiddle-block-becket-cam-black-29927239bk\"\u003eLewmar 72mm Synchro Fiddle Block with Becket \u0026amp; Cam – Black\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch3\u003eParts Desk Insights\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eBest use case:\u003c\/strong\u003e This block is purpose-built for halyard duty — the head geometry is optimized for the lead angles you encounter at the mast, which makes it a better choice than a standard single block for halyard applications. It’s well matched to performance cruisers and racers running 5\/16\"–3\/8\" modern line on main, jib, or spinnaker halyards.\u003c\/p\u003e\u003cp\u003eIf your line is larger than 3\/8\" or your loads are heavier, step up to the \u003ca href=\"\/products\/lewmar-72mm-synchro-block-halyard-black-3-8-1-2-line\"\u003e72mm Synchro Halyard Block\u003c\/a\u003e. Confirm the attachment-point dimensions and available space at the mast before ordering — halyard blocks often live in tight quarters near the sheave box or mast base.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51250740658212,"sku":"239-29926021","price":68.94,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/239-29926021BK.jpg?v=1786509428","url":"https:\/\/marisolmarine.com\/products\/lewmar-60mm-synchro-halyard-block-black-29926021","provider":"Marisol Marine Company","version":"1.0","type":"link"}