CeramicSpeed T47/86 Inboard Bottom Bracket - Black freehub Rim brake compatible

Rim brake compatible

the built-in LED flashlight helps keep you going

Photochromic or mirrored lens options for various light conditions

Natural brightness

Dropout Style - Axles

CeramicSpeed T47/86 Inboard Bottom Bracket - Black freehub Rim brake compatibleFeatures T47 is a standard created by custom frame builders. It's threaded, has an inner diameter of 47mm, and is 86mm wide It has the design benefits of being oversized and wide, but also the practical benefits of threads. This kit pairs those with 30mm spindle cranks. The cups have Ceramic Speed bearings pressed in. This BB is compatible with 86mm frames, and also compatible with TREK T47 85. 5mm wide frames