Shimano Dura-Ace R9100 Hollowtech II Italian Bottom Bracket Length/Teeth-165x42 Fits 7/8" bars and features

Fits 7/8" bars and features a minimalist hinged clamp bracket with a smooth underside for easy installation/removal without taking grips off

Closed-cell foam cushions base to protect valuables Model Sugarloaf Mount Strap Capacity 702 Cu In (11

You may need to change the front gearing so the rear derailleurs capacity is not exceeded

5" internal/external 30/35mm hole 32h ERD 566mm color black weight 570g

Shimano Dura-Ace R9100 Hollowtech II Italian Bottom Bracket Length/Teeth-165x42 Fits 7/8" bars and featuresShimano Dura Ace BB92 BB9000 Hollowtech II Bottom Brackets Bottom Bracket Shell I. D. 36 BB Frame Interface Italian BB Shell Width (mm) 70 Weight 65 Spindle Interface Type Shimano Hollowtech II Defined Color Black Type Italian