NEW Shimano XT BB-MT800 English Bottom Bracket frontder_3x Machined aluminum shell threads together

Machined aluminum shell threads together for precise bearing alignment and frame fit

improved shifting efficiency

33 tpi & 650b x 41mm

Eagle PowerLock and smooth

Michelin Grip compound rubber to provide low rolling resistance

NEW Shimano XT BB-MT800 English Bottom Bracket frontder_3x Machined aluminum shell threads togetherShimano XT BB MT800 Hollowtech II Bottom Brackets. Designed for use with Shimano 24mm MTB cranks Uses high quality sealed bearings Defined Color: Black Bottom Bracket Shell I. D.: 1. 37 Spindle Interface Type: Shimano Hollowtech II Weight: 82. 1 BB Shell Width (mm): 68 BB Shell Width (mm): 73 keyword search: bb70 keyword search: sm bb70 BB Frame Interface: English