Shimano Dura-Ace RD-9070 11-Speed Rear Derailleur Pulley Set ModelNumber=E4229 Includes two stepped cup bushings

Includes two stepped cup bushings that fit most 1” and 1⅛ " standard headset cups

} This mount will fit any of the quick release cleated handlebar lights to action camera brackets such as GoPro

Advanced proprietary Ceramic organic compound and thermal coating containing graphene for unmatched performance and control without added noise

} Damper cartridge for Ohlins forks

bolt size 8mm frame mount 35mm

Shimano Dura-Ace RD-9070 11-Speed Rear Derailleur Pulley Set ModelNumber=E4229 Includes two stepped cup bushingsShimano Dura Ace RD 9070 11 Speed Rear Derailleur Pulley Set. Shimano Rear Derailleur Pulley Assemblies TECH SPECS Fits Brand Shimano Drivetrain Speeds 11