Trek BB90 for Shimano cranks BOTTOM BRACKETS This bottom bracket enhances your

This bottom bracket enhances your ride with smooth

For any off road use

No adapters

Choose Kratos compound for best durability in wet environments and intense braking

cyclists seeking superior performance can enjoy reduced friction and increased longevity

Trek BB90 for Shimano cranks BOTTOM BRACKETS This bottom bracket enhances yourThis bearing set is ready to plug a Shimano crank in a Trek BB90 road frame. BB90 was used on Trek's carbon road frames pre 2021. For current carbon road and gravel frames, look at T47 Internal. 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.