Oversize ceramic bearings for longer lifespan
For use in default/existing derailleur cage of Shimano – no need to change chain length
Molded composite material for superior durability than metal ones
Patented stopper pin for easy installation
Compatible with: Shimano ROAD Rear Derailleur
Ceramic Bearings for Race Proven Performance
Molded Composite Material – Superior Durability over metal ones.
Directional Tension Pulley – Reduces Frictional Power Loss for a Quieter and Smoother Shifting Performance.