Shimano RD-M9100 Rear Derailleur Outer Pulley Cage Bumper

Shimano RD-M9100 Rear Derailleur Outer Pulley Cage Bumper Description: The Shimano RD-M9100 Rear Derailleur Outer Pulley Cage Bumper is a factory replacement part for select Shimano mountain bike rear derailleurs. This bumper fits on the leading edge of the derailleur cage and it helps to both reduce noise and protect the derailleur cage from wear and tear. Features: Bumper for the rear derailleurs outer pulley cage Fits the GS, or mid length cage, and the SGS, or long length cage, versions of the derailleur Includes one (1) bumper per order See compatibility tab for a list of compatible derailleurs