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BSA Bottom Bracket
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Wolf Tooth BSA Bottom Bracket eliminates drivetrain creak with polymer spindle bushings that end metal-on-metal contact
The Wolf Tooth BSA Bottom Bracket is engineered, machined, and assembled in Minnesota, and the design reflects that level of attention. Chrome steel bearings carry an ACOSUR ZNA coating for corrosion resistance that matched or exceeded stainless steel after 500 hours of saltwater exposure. The full sealing stack, including spindle o-ring, bearing and bushing gutter seals, inner and outer bearing seals, shell o-rings, and labyrinth end caps, keeps contamination out across trail, enduro, and DH applications. Replacement bearings, bushings, and o-rings are available under Wolf Tooth's Right to Repair policy.
What Our Gearhead® Experts Are Saying:
"I spec this on builds where creaking is a recurring complaint. The layered sealing system and polymer bushings address the problem at the source rather than just delaying it."
Details
- English threaded mountain bike bottom bracket for trail, enduro, and cross-country
- Polymer spindle bushings stop creak at the source, no metal-on-metal contact
- Adjustable sleeve fits both 68mm and 73mm BSA shells in a single unit
- Chrome steel bearings with ACOSUR ZNA coating resist corrosion in wet conditions
- Six-layer sealing keeps grit and moisture out of the bearing assembly
- Item #WFCA069
- Material
- 6061-T6 Aluminum, glass-filled Nylon, NBR, EPDM, Urethane
- Activity
- Mountain Biking
- Shell Width
- 68–73mm
- Spindle Type
- 24mm (Shimano/FSA/Rotor), 29mm (SRAM DUB), 30mm (RaceFace/FSA/Rotor)
- Crankset Compatibility
- 24mm (Shimano/FSA/Rotor), 29mm (SRAM DUB), 30mm (RaceFace/FSA/Rotor)
- Threading
- BSA (English threaded)
- Manufacturer Warranty
- Limited 1 year