{"product_id":"wolf-tooth-alsl-52100-custom-86-mm-shimano-hollowtech-ii-bottom-bracket-btbk1276-bicycle-bottom-brackets","title":"Wolf Tooth BSA Bottom Bracket - 24mm Spindle, English (BSA), 68 - 73mm Shell, Aluminum \u0026 Chrome Steel Bearings, Weather-Sealed, Lightweight \u0026 Durable","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eUpgrade Your Bicycle's Performance with the Wolf Tooth Bottom Bracket - English (BSA) 68\/73mm, 24mm Spindle, Orange\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-2\"\u003e\u003cp\u003eOptimize your ride with the Wolf Tooth Bottom Bracket, crafted for cyclists who demand smoothness, durability, and top-tier engineering. Designed specifically for BSA (English) frames with adjustable width from 68 to 73mm, this premium bottom bracket offers exceptional compatibility and performance for a variety of cranksets including Shimano Hollowtech II, RaceFace EXI, and more.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-3\"\u003e\u003cp\u003eMaterials \u0026amp; Durability\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-4\"\u003e\u003cp\u003eConstructed from lightweight 6061-T6 aluminum, the Wolf Tooth BSA bottom bracket features corrosion-resistant AISI 52100 chrome bearing steel balls and races hardened to Rc 60-66, ensuring long-lasting performance. The bearings are coated with ACOSUR ZNA technology, providing superior corrosion resistance equivalent or superior to stainless steel-even after rigorous saltwater exposure. This combination results in reduced friction, enhanced durability, and quieter operation, making it ideal for all-weather riding conditions.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-5\"\u003e\u003cp\u003eAdvanced Components \u0026amp; Technology\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-6\"\u003e\u003cp\u003eOur ground-up design incorporates custom bearings with a hardened chrome steel surface, custom seals, bushings, and cups that eliminate creaking and minimize metal-on-metal contact. The seals hold up against water, mud, and debris, preventing contamination and ensuring a smooth pedaling experience. The custom polymer spindle bushings further reduce creaking and extend component life. The bottom bracket is user-serviceable, allowing easy maintenance and replacement parts from Wolf Tooth's dedicated support team.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-7\"\u003e\u003cp\u003ePerformance \u0026amp; Engineering\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-8\"\u003e\u003cp\u003eEngineered for efficiency, this bottom bracket is optimized for low drag and radial bearing compression, offering a seamless power transfer and a frictionless ride. The adjustable-width internal sleeve seamlessly fits between 68mm and 73mm shell widths, providing a perfect fit without lateral noise or play. It is compatible with 24mm spindle cranksets, including Shimano Hollowtech II and RaceFace EXI, and is designed for easy installation and removal with standard spline tools.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-9\"\u003e\u003cp\u003eStyle \u0026amp; Use Case\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-10\"\u003e\u003cp\u003eAvailable in vibrant orange to match your Wolf Tooth Color Shop components, this bottom bracket adds a pop of color to your bike while delivering high-performance results. Whether you're a mountain biker tackling technical trails, a gravel rider exploring variable terrain, or a commuter seeking reliable power transfer, this bottom bracket is engineered to perform and withstand the rigors of your ride.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-11\"\u003e\u003cp\u003eInnovative Features\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-12\"\u003e\u003cp\u003e- Best-in-class weather sealing technology for reliable operation in rain, mud, and dirt.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-13\"\u003e\u003cp\u003e- Custom chrome bearing steel with ZNA coating for corrosion resistance and reduced friction.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-14\"\u003e\u003cp\u003e- User-friendly installation with standard spline tools.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-15\"\u003e\u003cp\u003e- Adjustable shell width from 68mm to 73mm with additional options for 83mm and 100mm widths.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-16\"\u003e\u003cp\u003e- Made with pride in the USA, engineered for longevity and precision.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-17\"\u003e\u003cp\u003eUpgrade your bike's bottom bracket for a smoother, faster, and more durable ride. Trust Wolf Tooth's commitment to quality, performance, and innovative design. The Wolf Tooth Bottom Bracket - the perfect choice for serious cyclists seeking reliable performance and long-lasting quality.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-18\"\u003e\u003cp\u003eProduct Specifications\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-19\"\u003e\u003cp\u003e- Shell ID: 33.6mm x 24tpi\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-20\"\u003e\u003cp\u003e- Compatibility: 68mm and 73mm BSA frames (additional sizes available)\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-21\"\u003e\u003cp\u003e- Spindle Diameter: 24mm\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-22\"\u003e\u003cp\u003e- Weight: 83g (without spacers)\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-23\"\u003e\u003cp\u003e- Material: 6061-T6 Aluminum, chrome bearing steel\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-24\"\u003e\u003cp\u003e- Made in the USA\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-25\"\u003e\u003cp\u003e- Includes spacers for precise fitment\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-26\"\u003e\u003cp\u003eChoose the Wolf Tooth Bottom Bracket for unbeatable performance, durability, and style on every ride!\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003eUnmatched durability with AISI 52100 chrome bearing steel race material, hardened to Rc 60-66, ensures smooth pedaling and long-lasting performance in all riding conditions. \u003c\/li\u003e\n\u003cli\u003eAdvanced weather sealing and high-quality seals protect internal components from water, mud, and trail debris, reducing maintenance and preventing creaking over time. \u003c\/li\u003e\n\u003cli\u003eDesigned for versatility, this bottom bracket fits 68mm and 73mm BSA shells with an adjustable-width sleeve, compatible with Shimano Hollowtech II, RaceFace EXI, and 24mm spindle cranksets for seamless integration. \u003c\/li\u003e\n\u003cli\u003eEngineered for performance, the Wolf Tooth Bottom Bracket features optimized bearing radial compression, preload, and a custom polymer spindle bushing that minimizes noise and motion resistance, enhancing your ride quality. \u003c\/li\u003e\n\u003cli\u003eBuilt in the USA with premium materials such as lightweight 6061-T6 aluminum and corrosion-resistant ACOSUR ZNA coating, this bottom bracket delivers a sleek, stylish orange finish, making it ideal for both XC and trail cyclists seeking reliability and style.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Wolf Tooth","offers":[{"title":"Default Title","offer_id":42328062787651,"sku":"BTBK1276","price":132.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/CR4663_6aad6986-f6e3-4282-a65c-a85c69a557a6.jpg?v=1779347671","url":"https:\/\/365cycles.com\/products\/wolf-tooth-alsl-52100-custom-86-mm-shimano-hollowtech-ii-bottom-bracket-btbk1276-bicycle-bottom-brackets","provider":"365 Cycles","version":"1.0","type":"link"}