{"product_id":"wolf-tooth-bsa-bottom-bracket","title":"Wolf Tooth BSA Bottom Bracket","description":"\u003cp\u003e\u003cstrong\u003eWolf Tooth BSA Bottom Bracket\u003c\/strong\u003e is engineered from the ground up for riders who demand smooth performance, long-term durability, and true serviceability. Designed, machined, and assembled in Minnesota, this threaded BSA bottom bracket eliminates common creaks while optimizing bearing alignment, preload, and radial compression for low-drag efficiency in real-world riding conditions.\u003c\/p\u003e\n\n\u003cp\u003eAvailable for 24mm Shimano, 29mm DUB, and 30mm spindle cranksets, the Wolf Tooth BSA Bottom Bracket offers broad compatibility across road, gravel, and mountain platforms. An adjustable-width internal sleeve fits 68–73mm BSA shells, while optional sleeves are available for 83mm and 100mm shells. Precision-machined aluminum cups and custom polymer spindle bushings reduce metal-on-metal contact, a key factor in minimizing noise and long-term wear.\u003c\/p\u003e\n\n\u003cp\u003eThe bearings are a standout feature. Wolf Tooth uses hardened AISI 52100 chrome bearing steel for both balls and races, offering higher surface hardness than stainless for improved durability, reduced rolling resistance, and quieter operation. An ACOSUR ZNA coating provides corrosion resistance comparable to or exceeding stainless steel, even after extended saltwater exposure. Combined with an extensive multi-stage sealing system, this bottom bracket is built to perform in mud, rain, and demanding trail conditions.\u003c\/p\u003e\n\n\u003ch3\u003eWolf Tooth BSA Bottom Bracket – Key Features\u003c\/h3\u003e\n\u003cul class=\"specs_at_a_glance\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpindle Compatibility:\u003c\/strong\u003e 24mm, 29mm DUB, and 30mm cranksets\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShell Compatibility:\u003c\/strong\u003e 68mm, 73mm, 83mm, and 100mm BSA threaded shells\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAdjustable Sleeve:\u003c\/strong\u003e Included for 68–73mm shells\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSealing System:\u003c\/strong\u003e Best-in-class weather sealing against water, mud, and debris\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCustom Bushings:\u003c\/strong\u003e Polymer spindle bushings reduce creaking and friction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eServiceability:\u003c\/strong\u003e Replacement parts and service guides available\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e Lifetime warranty on bearings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIncluded Spacers\u003c\/h3\u003e\n\u003cul class=\"specs_at_a_glance\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShell Spacers:\u003c\/strong\u003e 2 x 2.5mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e24mm Spindle:\u003c\/strong\u003e 2 x 0.5mm, 2 x 1mm, 2mm, 3mm, 5mm spacers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e29mm DUB Spindle:\u003c\/strong\u003e 2 x 0.5mm, 2 x 1mm, 3mm, 5mm, 7.5mm spacers\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e30mm Spindle:\u003c\/strong\u003e 2 x 0.5mm, 2 x 1mm, 2mm, 3mm, 5mm spacers\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul class=\"specs_at_a_glance\"\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight (without spacers):\u003c\/strong\u003e 24mm – 83g | 29mm – 87g | 30mm – 82g\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCup Material:\u003c\/strong\u003e 6061-T6 aluminum\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternal Materials:\u003c\/strong\u003e Glass-filled nylon, NBR, EPDM, urethane seals\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBearing Balls:\u003c\/strong\u003e AISI 52100 chrome steel, hardened to Rc 61–66\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBearing Races:\u003c\/strong\u003e AISI 52100 chrome steel, hardened to Rc 60–65\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTool Interface:\u003c\/strong\u003e 44-16 spline (24mm) | 46-12 spline (29mm DUB, 30mm)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cp\u003eInstallation and removal are performed using standard 44-16 (24mm) or 46-12 (29mm DUB and 30mm) spline bottom bracket tools. Proper shell preparation and light grease on threads are recommended for optimal performance and noise prevention.\u003c\/p\u003e\n\n\u003ch3\u003eFinal Take\u003c\/h3\u003e\n\u003cp\u003eThe Wolf Tooth BSA Bottom Bracket combines premium materials, precision machining, and advanced sealing into a threaded system built for longevity. Whether you're building a high-performance gravel bike, trail machine, or road setup, this BSA bottom bracket delivers smooth pedaling, reliable durability, and the long-term confidence of a fully serviceable design.\u003c\/p\u003e","brand":"Wolf Tooth","offers":[{"title":"24mm \/ Black","offer_id":45079741956140,"sku":"WBB-BSA-24-BLK","price":129.95,"currency_code":"USD","in_stock":true},{"title":"24mm \/ Orange","offer_id":45079741988908,"sku":"WBB-BSA-24-ORG","price":129.95,"currency_code":"USD","in_stock":true},{"title":"24mm \/ Ultraviolet Purple","offer_id":45079742021676,"sku":"WBB-BSA-24-PRU","price":129.95,"currency_code":"USD","in_stock":true},{"title":"24mm \/ Raw Silver","offer_id":45079742054444,"sku":"WBB-BSA-24-RSIL","price":129.95,"currency_code":"USD","in_stock":true},{"title":"24mm \/ Blue","offer_id":45079742087212,"sku":"WBB-BSA-24-BLU","price":129.95,"currency_code":"USD","in_stock":true},{"title":"24mm \/ Espresso","offer_id":45079742119980,"sku":"WBB-BSA-24-ESP","price":129.95,"currency_code":"USD","in_stock":true},{"title":"24mm \/ Gold","offer_id":45079742152748,"sku":"WBB-BSA-24-GLD","price":129.95,"currency_code":"USD","in_stock":true},{"title":"24mm \/ Olive","offer_id":45079742185516,"sku":"WBB-BSA-24-OLV","price":129.95,"currency_code":"USD","in_stock":true},{"title":"24mm \/ Red","offer_id":45079742218284,"sku":"WBB-BSA-24-RED","price":129.95,"currency_code":"USD","in_stock":true},{"title":"29mm \/ Black","offer_id":45079742251052,"sku":"WBB-BSA-29-BLK","price":129.95,"currency_code":"USD","in_stock":false},{"title":"29mm \/ Orange","offer_id":45079742283820,"sku":"WBB-BSA-29-ORG","price":129.95,"currency_code":"USD","in_stock":true},{"title":"29mm \/ Ultraviolet Purple","offer_id":45079742316588,"sku":"WBB-BSA-29-PRU","price":129.95,"currency_code":"USD","in_stock":false},{"title":"29mm \/ Raw Silver","offer_id":45079742349356,"sku":"WBB-BSA-29-RSIL","price":129.95,"currency_code":"USD","in_stock":true},{"title":"30mm \/ Black","offer_id":45079742382124,"sku":"WBB-BSA-30-BLK","price":129.95,"currency_code":"USD","in_stock":false},{"title":"30mm \/ Orange","offer_id":45079742414892,"sku":"WBB-BSA-30-ORG","price":129.95,"currency_code":"USD","in_stock":true},{"title":"30mm \/ Ultraviolet Purple","offer_id":45079742447660,"sku":"WBB-BSA-30-PRU","price":129.95,"currency_code":"USD","in_stock":false},{"title":"30mm \/ Raw Silver","offer_id":45079742480428,"sku":"WBB-BSA-30-RSIL","price":129.95,"currency_code":"USD","in_stock":true},{"title":"30mm \/ Blue","offer_id":45079742513196,"sku":"WBB-BSA-30-BLU","price":129.95,"currency_code":"USD","in_stock":true},{"title":"30mm \/ Espresso","offer_id":45079742545964,"sku":"WBB-BSA-30-ESP","price":129.95,"currency_code":"USD","in_stock":true},{"title":"30mm \/ Gold","offer_id":45079742578732,"sku":"WBB-BSA-30-GLD","price":129.95,"currency_code":"USD","in_stock":true},{"title":"30mm \/ Olive","offer_id":45079742611500,"sku":"WBB-BSA-30-OLV","price":129.95,"currency_code":"USD","in_stock":true},{"title":"30mm \/ Red","offer_id":45079742644268,"sku":"WBB-BSA-30-RED","price":129.95,"currency_code":"USD","in_stock":true},{"title":"29mm \/ Blue","offer_id":45115742978092,"sku":"WBB-BSA-29-BLU","price":129.95,"currency_code":"USD","in_stock":true},{"title":"29mm \/ Espresso","offer_id":45115743240236,"sku":"WBB-BSA-29-ESP","price":129.95,"currency_code":"USD","in_stock":true},{"title":"29mm \/ Gold","offer_id":45115743502380,"sku":"WBB-BSA-29-GLD","price":129.95,"currency_code":"USD","in_stock":true},{"title":"29mm \/ Olive","offer_id":45115744223276,"sku":"WBB-BSA-29-OLV","price":129.95,"currency_code":"USD","in_stock":true},{"title":"29mm \/ Red","offer_id":45115744976940,"sku":"WBB-BSA-29-RED","price":129.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0608\/7684\/9196\/files\/wolf-tooth-bsa-bottom-bracket-1585444.jpg?v=1771562175","url":"https:\/\/racycles.com\/products\/wolf-tooth-bsa-bottom-bracket","provider":"RA Cycles","version":"1.0","type":"link"}