Shimano Dura-Ace R9100 Hollowtech II Italian Bottom Bracket Reb55/Comp37 Motorsport Level 1 Safety Rating

Motorsport Level 1 Safety Rating EN1621-1:2012 Gender/Age Adult Color Black Size Medium Pad Type Foam Defined Color Black Protection Area Elbow

Aggressive XC tread for the most technical terrain

so the top of the shaft is lower

15" long for extra leverage and vinyl coated handle for comfort

Double lock-on grip

Shimano Dura-Ace R9100 Hollowtech II Italian Bottom Bracket Reb55/Comp37 Motorsport Level 1 Safety RatingShimano 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