{"product_id":"wolf-tooth-alsl-52100-custom-86-mm-raceface-easton-cinch-bottom-bracket-btbk1261-bicycle-bottom-brackets","title":"Wolf Tooth BSA Bottom Bracket - 30mm Spindle, 68 - 73mm Shell, English (BSA), Raw Silver, Heavy-Duty Sealed Bearings, Alloy Construction, Compatible with Shimano DUB \u0026 24mm Cranks","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eUpgrade your mountain biking or trail riding performance with the Wolf Tooth Bottom Bracket - English (BSA), 68\/73mm, 30mm Spindle, Raw Silver - the ultimate choice for durability, efficiency, and seamless compatibility.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-2\"\u003e\u003cp\u003e### Materials \u0026amp; Engineering Excellence\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-3\"\u003e\u003cp\u003eConstructed from high-grade 6061-T6 aluminum and AISI 52100 chrome bearing steel, this bottom bracket delivers superior strength, corrosion resistance, and longevity. The bearings feature a hardness of Rc 61-66, ensuring minimal friction for smooth pedaling, while the race surfaces boast a ZNA coating-a corrosion-resistant layer that surpasses stainless steel after a 500-hour saltwater test. The use of glass-filled nylon, NBR, EPDM, and urethane seals guarantees unbeatable weatherproofing against water, mud, and trail debris.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-4\"\u003e\u003cp\u003e### Advanced Components \u0026amp; Technology\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-5\"\u003e\u003cp\u003eWolf Tooth's ground-up design features custom bearings and seals that eliminate creaking and reduce metal-on-metal contact, providing a quiet, low-drag performance. The custom polymer spindle bushings further prevent creaking and extend crankset lifespan. The adjustable-width internal sleeve fits 68mm and 73mm BSA shells, ensuring perfect alignment and optimal bearing radial compression. Swappable in sizes for 24mm, 29mm DUB, and 30mm spindle cranksets, it guarantees broad compatibility across various bike setups.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-6\"\u003e\u003cp\u003e### Performance \u0026amp; Use Case\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-7\"\u003e\u003cp\u003eIdeal for cross-country, trail, and enduro riders, this bottom bracket offers rapid acceleration, efficient power transfer, and reliable operation in all weather conditions. Its best-in-class weather sealing shields the bearings from dust, water, and trail debris, maintaining peak performance ride after ride. The lightweight design (82-87g depending on spindle size) ensures your bike remains nimble without sacrificing durability.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-8\"\u003e\u003cp\u003e### Style \u0026amp; Compatibility\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-9\"\u003e\u003cp\u003eDesigned and machined at Wolf Tooth's Minnesota facility, this Raw Silver finish complements any bike aesthetic-whether you prefer a sleek, minimalist look or matching Wolf Tooth's colorful component line. Compatible with 68mm and 73mm BSA bottom bracket shells, plus 83mm and 100mm widths through the available spacer kits, it provides versatile installation options to fit a wide array of frames.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-10\"\u003e\u003cp\u003e### Innovative and Convenient Features\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-11\"\u003e\u003cp\u003e- Lifetime warranty on bearings and replacement parts, backed by Wolf Tooth's renowned Right to Repair initiative.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-12\"\u003e\u003cp\u003e- Easy installation and removal with standard 44-16 (24mm) or 46-12 (29mm DUB, 30mm) spline tools.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-13\"\u003e\u003cp\u003e- Supplied with spacers and shells for seamless setup and adjustment.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-14\"\u003e\u003cp\u003e- Engineered, machined, and assembled in the USA, reflecting superior craftsmanship.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-15\"\u003e\u003cp\u003eUpgrade your ride with the Wolf Tooth Bottom Bracket - engineered for durability, optimized for performance, and designed to keep you pedaling smoothly through any trail condition. Whether you're seeking reliability on rugged descents or crisp efficiency on climbs, this bottom bracket is your perfect cycling companion.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003e- Crafted from high-quality 6061-T6 aluminum and hardened AISI 52100 chrome bearing steel, this Wolf Tooth Bottom Bracket ensures superior durability, corrosion resistance, and smooth pedaling performance in all weather conditions. \u003c\/li\u003e\n\u003cli\u003e- Designed with advanced engineering, it features custom bearings, seals, and bushings that eliminate creaking, reduce friction, and provide best-in-class weather sealing for long-lasting reliability on rugged trails or city rides. \u003c\/li\u003e\n\u003cli\u003e- Compatible with 30mm spindle cranksets and adjustable shell widths from 68 to 73mm, offering versatile installation options for BSA (English) frame bottom brackets with easy-to-use spline tools for quick setup and removal. \u003c\/li\u003e\n\u003cli\u003e- Innovative components such as polymer spindle bushings and ACOSUR ZNA coatings optimize performance, minimize noise, and extend service intervals, making maintenance simple and hassle-free. \u003c\/li\u003e\n\u003cli\u003e- Engineered and assembled in the USA, the Wolf Tooth Bottom Bracket features a sleek raw silver finish, with options to match other Wolf Tooth components, and includes spacers for precise fitment across multiple frame widths.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Wolf Tooth","offers":[{"title":"Default Title","offer_id":42328064294979,"sku":"BTBK1261","price":129.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/CR4673.jpg?v=1779347658","url":"https:\/\/365cycles.com\/products\/wolf-tooth-alsl-52100-custom-86-mm-raceface-easton-cinch-bottom-bracket-btbk1261-bicycle-bottom-brackets","provider":"365 Cycles","version":"1.0","type":"link"}