Ceramicspeed OSPW RS 5-Spoke for Shimano Dura-Ace R9250/Ultegra R8150 Derailleur Pulley (Black)

Description

This 5-Spoke OSPW RS is CeramicSpeed's pulley system sized for Shimano's current 12-speed Di2 flagship and second-tier groupsets - Dura-Ace R9250 and Ultegra R8150. The idea is the same across the whole OSPW range: a larger pulley diameter reduces how sharply the chain bends as it passes through the