an OEM replacement part for a number of Specialized and S-Works mountain bikes and kids bikes. To choose the correct derailleur hanger for your bike, it is important that the hanger is ...

replacement part for a number of Specialized and S-Works road, gravel, and cyclocross bikes. To choose the correct derailleur hanger for your bike, it is important that the hanger is identical in ...

for use with the Specialized Aethos and Tarmac SL8. The small notch on the side of the mount allows a Shimano Di2 wire to pass through for a clean look.

consists of the replacement parts for the internals of the rear derailleur's stabilizer unit. The rear derailleur stabilizer helps to reduce chain slap and the chances of dropping the chain when tackling ...

Unit is a factory replacement part to replace a damaged or missing unit. This bolt and washer unit is designed to help attach the shift cable to the rear derailleur.