The Shimano XTR SM-BB93 Bottom Bracket is engineered to deliver smooth rotation and long-lasting performance, making it the go-to choice for demanding mountain bike riders. Its robust design ensures reliability even on the toughest trails.

Optimized for Mountain Biking: Designed specifically for MTB usage, the SM-BB93 bottom bracket features improved sealing performance to keep out dirt, water, and debris, ensuring consistent operation in challenging off-road conditions.

Threaded Installation for Secure Fit: The threaded design offers a secure and straightforward installation, providing a stable connection that enhances power transfer and efficiency during rides.

Smooth and Efficient Operation: With high-quality bearings, the SM-BB93 minimizes friction and ensures smooth crank rotation, enabling riders to focus on their performance without mechanical distractions.

As part of Shimano's premium XTR lineup, the SM-BB93 is compatible with Shimano Hollowtech II cranksets, making it an excellent upgrade for mountain bikers seeking exceptional durability and precision.