Shimano XTR bottom bracket

Lightweight to offset weight disadvantage of drivetrain
Smoother rotation
Better sealing performance
Durable enough for mountain bike usage

SM-BB93 68-73 mm for threaded bottom bracket

• Shell size: 68/73 mm
• Spindle: 24 mm
• Compatibility: M9000, M980, M985, M970, M960

SM-BB94-41A 89.5-92 mm for PressFit bottom bracket

• Shell size: 89.5/92 x 41 mm
• Spindle: 24 mm
• Compatibility: M9000, M980, M985