OSPW Pulley Wheel System SRAM eTap – Alloy Pulley Carbon Cage BLK

CeramicSpeed OSPW Pulley Wheel System for SRAM eTap - Alloy Pulley Carbon Cage Black. The CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low-friction bearings and uniqu