Regardless of which SHIMANO rear derailleur you have, it will work better with the Ceramic Speed Pulleys. Ceramic speed pulley wheels reduce drivetrain friction and increase bearing life. They are designed to work with less drag, putting more of your power into propulsion.
These are ceramic speeds standard machined aluminum pulleys with stock Ceramic Speed balls installed in our hardened-steel races. These kill the competition in tests.
These are compatible with all SHIMANO derailleurs, mechanical and electronic.
In the box
- 2 Ceramic Speed standard pulley wheels
- CeramicSpeed bearing oil in 10ml dropper bottle
- Sticker sheet