{"product_id":"lewmar-72mm-htx-fiddle-block-black-29197231","title":"Lewmar 72mm HTX Fiddle Block – Black | 29197231","description":"\u003ch2\u003eLewmar 72mm HTX Fiddle Block – Black | 29197231\u003c\/h2\u003e\u003cp\u003eThe Lewmar HTX 72mm Fiddle Block is a high-load sailing block built for demanding purchase systems where compact mechanical advantage and smooth operation under sustained load are both essential. The fiddle configuration stacks two sheaves in a slim vertical profile, making it well suited to boom vangs, backstay controls, and other high-load sail-control arrangements where space is limited but loads are significant.\u003c\/p\u003e\u003cp\u003eThe HTX range is built from high-quality materials with a straightforward, reliable construction: strong aluminum side cheeks, a central plain bearing optimized for high loads, and Delrin side-thrust ball bearings for smooth, consistent operation across the full load range.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 29197231\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSheave Diameter:\u003c\/strong\u003e 72 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration:\u003c\/strong\u003e Fiddle (double sheave, vertical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Line Diameter:\u003c\/strong\u003e 1\/2\" (12 mm) — see fitment note\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Load Limit:\u003c\/strong\u003e 4,405 lbs (2,000 kg)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreaking Load:\u003c\/strong\u003e 8,800 lbs (4,000 kg)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 530 g (18.5 oz)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShackle Post:\u003c\/strong\u003e 16.5 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Pin:\u003c\/strong\u003e 9.8 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 743683204296\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFeatures\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFiddle configuration — compact vertical twin-sheave layout for high purchase in tight spaces\u003c\/li\u003e\n\u003cli\u003eStrong aluminum side cheeks for high-load durability\u003c\/li\u003e\n\u003cli\u003eCentral plain bearing optimized for efficiency under high loads\u003c\/li\u003e\n\u003cli\u003eDelrin side-thrust ball bearings for smooth, consistent operation\u003c\/li\u003e\n\u003cli\u003eAdjustable swivel head with grub screw locking mechanism\u003c\/li\u003e\n\u003cli\u003eBlack HTX finish — built for performance cruising and racing applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBoom vang and kicker purchase systems\u003c\/li\u003e\n\u003cli\u003eBackstay control and adjustment systems\u003c\/li\u003e\n\u003cli\u003eHigh-load sail-control arrangements using modern reduced-diameter running rigging\u003c\/li\u003e\n\u003cli\u003eFrequently adjusted, heavily loaded systems on performance cruisers and racing sailboats\u003c\/li\u003e\n\u003cli\u003eApplications requiring compact mechanical advantage with up to 1\/2\" (12 mm) line\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment Note\u003c\/h3\u003e\u003cp\u003eAlthough the broader 72mm HTX family is rated for line up to 14 mm (9\/16\"), the published specification for this fiddle configuration is a maximum of \u003cstrong\u003e12 mm (1\/2\")\u003c\/strong\u003e. Confirm your actual rope diameter before ordering — using a line larger than 12 mm in this block is not recommended.\u003c\/p\u003e\u003ch3\u003eRelated Products\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-72mm-htx-block-single-black-9-16-14mm-line\"\u003eLewmar 72mm HTX Single Block – Black\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-72mm-htx-block-double-black-9-16-14mm-line\"\u003eLewmar 72mm HTX Double Block – Black\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-72mm-htx-single-toggle-head-block-black-29197221\"\u003eLewmar 72mm HTX Single Toggle Head Block – Black\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/products\/lewmar-72mm-htx-block-footblock-black-9-16-14mm-line\"\u003eLewmar 72mm HTX Footblock – 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 the right choice for boom vang and backstay systems on performance cruisers and racers where you need high purchase in a compact, slim profile. The fiddle layout keeps the block short and manageable even in tight installations near the boom end or mast base.\u003c\/p\u003e\u003cp\u003eThe key detail to get right on this block is rope diameter. The fiddle-specific maximum is 12 mm (1\/2\") — not the 14 mm listed for the broader HTX family. If you’re running 14 mm line, you’ll need the standard \u003ca href=\"\/products\/lewmar-72mm-htx-block-double-black-9-16-14mm-line\"\u003e72mm HTX Double\u003c\/a\u003e instead. Confirm the shackle post (16.5 mm) and pin (9.8 mm) dimensions against your attachment hardware before ordering.\u003c\/p\u003e","brand":"LNS","offers":[{"title":"Default Title","offer_id":51250734792740,"sku":"239-29197231","price":593.34,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/51a3324b-3deb-4104-aa86-73444cae7ff4.png?v=1786644494","url":"https:\/\/marisolmarine.com\/products\/lewmar-72mm-htx-fiddle-block-black-29197231","provider":"Marisol Marine Company","version":"1.0","type":"link"}