{"product_id":"wolf-tooth-bottom-bracket-btbk1421-bicycle-bottom-brackets","title":"Wolf Tooth 29mm Espresso BSA Bottom Bracket | Durable, Lightweight Alloy, Advanced Sealing, Custom Bearings \u0026 Corrosion-Resistant Coating for MTB \u0026 Road Cycles","description":"\u003cdiv id=\"seqbpdescription-1\"\u003e\u003cp\u003eUpgrade your mountain and road bike with the Wolf Tooth BSA Bottom Bracket 29mm Espresso - the ultimate choice for reliable performance, durability, and precision engineering. Designed with advanced materials and innovative features, this bottom bracket ensures smooth pedaling, minimal drag, and long-lasting service life, making it perfect for serious cyclists and enthusiasts alike.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-2\"\u003e\u003cp\u003eMaterials \u0026amp; Construction:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-3\"\u003e\u003cp\u003eCrafted from lightweight yet robust 6061-T6 aluminum and high-grade AISI 52100 chrome bearing steel, the Wolf Tooth BSA Bottom Bracket is built to withstand the rigors of all-weather trail and road riding. The race surfaces are coated with ACOSUR ZNA, providing superior corrosion resistance comparable to stainless steel, even after 500 hours of saltwater testing. Sealed with custom-designed seals and bushings, this bottom bracket prevents water, mud, and debris ingress, maintaining optimal performance in diverse riding conditions.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-4\"\u003e\u003cp\u003ePerformance \u0026amp; Engineering:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-5\"\u003e\u003cp\u003eEngineered for excellence, the Wolf Tooth BSA Bottom Bracket features custom bearings with hardened surfaces to reduce resistance, noise, and wear. The radial compression and preload are finely tuned to provide an optimal balance between low drag and long-term durability. Its user-serviceable design allows easy installation, removal, and maintenance using standard spline tools, supported by detailed service guides and replacement parts.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-6\"\u003e\u003cp\u003eComponents \u0026amp; Technology:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-7\"\u003e\u003cp\u003eEquipped with specially designed polymer spindle bushings, this bottom bracket eliminates creaking and metal-on-metal contact for quieter, smoother operation. Available to fit 24mm Shimano, 29mm DUB, and 30mm spindle cranksets, it offers versatile compatibility for a range of bike setups. The adjustable-width sleeve accommodates BSA shell widths from 68mm to 73mm, with additional spacers for wider shells (83mm and 100mm), ensuring a customized fit and seamless integration with your frame.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-8\"\u003e\u003cp\u003eStyle \u0026amp; Use Case:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-9\"\u003e\u003cp\u003eFinished in a sleek Espresso color, the Wolf Tooth BSA Bottom Bracket adds a subtle yet refined aesthetic touch to your bike. Whether you're MTB riding, cyclocross racing, or commuting, this bottom bracket is designed for demanding riders who seek longevity, reliability, and high performance. Its lightweight profile (87g for the 29mm model) and expertly machined construction make it an ideal upgrade for enhancing pedal efficiency and overall bike responsiveness.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-10\"\u003e\u003cp\u003eInnovative \u0026amp; Differentiating Features:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-11\"\u003e\u003cp\u003e- Custom high-hardness chrome bearing steel balls and races for increased durability and reduced friction\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-12\"\u003e\u003cp\u003e- ACOSUR ZNA corrosion-resistant coating ensures longevity in harsh weather\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-13\"\u003e\u003cp\u003e- Separate internal sleeves for different shell widths facilitate precise fitment and easy installation\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-14\"\u003e\u003cp\u003e- Lifetime warranty and readily available replacement parts reinforce confidence and support long-term maintenance\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-15\"\u003e\u003cp\u003eTechnical Specs:\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-16\"\u003e\u003cp\u003e- Weight: 29mm (87g), 24mm (83g), 30mm (82g)\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-17\"\u003e\u003cp\u003e- Material: 6061-T6 aluminum, chrome bearing steel, sealed bearings\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-18\"\u003e\u003cp\u003e- Compatibility: 68-73mm BSA shells (upgrade options for wider shells)\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-19\"\u003e\u003cp\u003e- Includes: Shell and spindle spacers, installation tools support\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpdescription-20\"\u003e\u003cp\u003eElevate your cycling experience with the Wolf Tooth BSA Bottom Bracket 29mm Espresso - engineered for excellence, built to last. Designed and assembled in the USA, it's your go-to solution for a smoother, more reliable ride in all conditions.\u003c\/p\u003e\u003c\/div\u003e\u003cdiv id=\"seqbpfeatures\"\u003e\u003cul\u003e\n\u003cli\u003ePremium 6061-T6 aluminum construction ensures lightweight durability and corrosion resistance for long-lasting performance in all riding conditions. \u003c\/li\u003e\n\u003cli\u003eCustom-designed bearings feature hardened chrome steel balls and races with ACOSUR ZNA coating, providing superior wear resistance, reduced spinning resistance, and enhanced saltwater corrosion protection. \u003c\/li\u003e\n\u003cli\u003eEngineered for optimal performance, these bottom brackets utilize high-precision seals, bushings, and cups that eliminate creaking, minimize drag, and maintain smooth operation with best-in-class weather sealing. \u003c\/li\u003e\n\u003cli\u003eCompatible with 24mm Shimano, 29mm DUB, and 30mm spindle cranksets, the Wolf Tooth BSA Bottom Bracket offers adjustable width fitting (68mm to 73mm shells) and simple installation with standard spline tools. \u003c\/li\u003e\n\u003cli\u003eDesigned and assembled in the USA, this bottom bracket features a sleek Espresso finish available in multiple color options, includes comprehensive spacer sets for multiple shell widths, and is backed by a lifetime warranty for guaranteed reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/div\u003e","brand":"Wolf Tooth","offers":[{"title":"Default Title","offer_id":42875968225347,"sku":"BTBK1421","price":129.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1608\/6187\/files\/WBB-BSA-29-ESP.jpg?v=1773420491","url":"https:\/\/365cycles.com\/products\/wolf-tooth-bottom-bracket-btbk1421-bicycle-bottom-brackets","provider":"365 Cycles","version":"1.0","type":"link"}