Wolf Tooth T47 Internal Bottom Bracket

The 'Internal' designation means the bearing cups sit inside the frame shell, rather than sitting externally. This design is specific to frames designed for internal T47 setups, so ensure your frame is compatible before purchasing.

No, this specific model is designed exclusively for 30mm spindle diameter cranksets. You will need to look for a bottom bracket that matches your specific spindle diameter.

Wolf Tooth uses specialized spindle bushings that sit between the bearing inner race and the crank spindle. This prevents metal-on-metal contact, which is the primary source of creaking in many bottom bracket systems.

It is built for longevity in harsh conditions. The system uses a combination of labyrinth end caps, wiper seals, and o-rings on both the spindle and inner shell to create a robust barrier against water and grit.

The bearings are designed to be durable with their corrosion-resistant coating, but they are serviceable. If they eventually wear out, you can replace the bearings rather than the entire bottom bracket assembly.