Shimano XTR SM-BB93 Mountain Bike Bottom Bracket
If you're a legit mountain bike rider, you have to be riding through some muck, mud, water, and dust. Get that like-new feeling out of your cranks with a simple bottom bracket change. The Shimano XTR SM BB-93 Mountain Bottom Bracket is 71g of sealed cartridge goodness threaded and ready to get you rolling.
- Sealed cartridge bearings keep out water and mud
- XTR level is Shimano's top-level offering