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.
Copy the following string into an e-mail to firstname.lastname@example.org to request support.