Details~Replacement rear derailleur pulleys with ceramic bearings.
- • Low resistance long wearing Silicon Nitride Ceramic Hybrid bearings
- • Pulley Wheels made from durable DuPont Zytelª will far outlast normal pulleys
- • Pulleys have Teflon content to reduce chain stick
- • Compatible with almost all derailleur systems
- • Available in Campagnolo or Shimano compatible design