Shimano Dura-Ace R9100 Hollowtech II Italian Bottom Bracket Length/Teeth-165x42 You may need to change

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

Offering a 556% range utilizing an XD driver to enable a 9-50t

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

The bar tape can be wrapped to individual preferences – thinner/thicker or increased/decreased grip texture – as wrap positioning guide marks are incorporated into the bar tape surface pattern

}Tektro #30 Hydraulic Brake Hose Kit - With Connecting Bolt Unit 5

Shimano Dura-Ace R9100 Hollowtech II Italian Bottom Bracket Length/Teeth-165x42 You may need to changeShimano 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