Trek BB90 for Rotor 24mm cranks
This bearing set is ready to plug a Rotor 24mm crank in a Trek BB90 road frame.
BB90 is used on Trek's carbon road frames. For aluminum frames and mountain bikes, have a look at the BB86 - BB92 collection.
Choose road bearings for road bikes, cross bearings for cyclocross or if you frequently ride your road bike on wet roads.