With smoot rotation and better sealing performance, the SHIMANO XTR bottom bracket is durable for mountain bike usage. It is available in threaded and press-fit options.

• Lightweight to offset weight disadvantage of drivetrain
• Smoother rotation
• Better sealing performance
• Durable enough for mountain bike usage
• Fits various frame designs
• SM-BB93 for threaded bottom bracket
• SM-BB94-41A for press-fit bottom bracket