Extreme lightweight Shimano XTR Press Fit bottom bracket shells made of lightweight and durable Resin-plastic and save 18,5 gramms from SM-BB91-41A bottom bracket. Improved sealing performance of the shells specifically for mountainbike conditions.
Compatible via the delivered spacer for frames with the Press Fit BB standard 89,5/92x41mm.
For Shimano Hollowtech-II cranksets with 24mm axle.
Recommended for XTR FC-M9000, XTR FC-M980 und XTR FC-M985.