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.

Specifications

Material: Resin

Weight: approx. 55g

BSA/ITA: Pressfit 91

Bottom bracket spindle profile: integrated axle, Hollowtech 2

Case width: 89,5 / 92 x 41mm

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