Layers That Adapt With The Weather
Shop smart apparel
Your Fall Kit Is Here
Shop New Arrivals
Buy Garmin, Get Strava Premium Free
Summit+ exclusive | Select styles only
New Arrival
New Arrival
T47 External Bottom Bracket
Style & Size:
Quantity
Join Summit Club+ and
Wolf Tooth T47 External Bottom Bracket brings USA-machined precision and multi-layer sealing to T47 frames
The Wolf Tooth T47 External keeps the bearing centerline exactly where a T47 frame expects it, with a 2.5mm cup thickness that pairs with the adjustable sleeve to eliminate shell-specific cup selection across 68mm and 73mm widths. Right to Repair parts availability means this is a bottom bracket worth building a service routine around, not just swapping out when it fails.
What Our Gearhead® Experts Are Saying:
"The Acosur ZNA coating on the 52100 chrome steel bearings is what separates this from a generic T47 cup. It's a harder surface that resists corrosion and keeps preload consistent through wet miles and repeated service cycles."
Details
- T47 bottom bracket fits 68mm and 73mm threaded shells
- Adjustable-width sleeve fits both shell widths without separate cups
- AISI 52100 chrome steel bearings with Acosur ZNA coating resist wear and corrosion
- Multi-layer sealing keeps grit and moisture out of the bearing races
- Item #WFCA06A
- Material
- 6061-T6 aluminum, glass-filled nylon, NBR, EPDM, urethane
- Activity
- Cycling
- Shell Width
- 2.68–2.87 in (68–73 mm), adjustable
- Threading
- T47 external thread
- Spindle Type
- 24mm (Shimano/FSA/Rotor), 29mm (SRAM DUB), 30mm (RaceFace/FSA/Rotor)
- Crankset Compatibility
- Shimano, FSA, Rotor (24mm); SRAM DUB (29mm); RaceFace, FSA, Rotor (30mm)
- Manufacturer Warranty
- Limited 1 Year