CeramicSpeed OSPW X Pulley Wheel System for Shimano GRX/RX 2x11 - Coated Races, Alloy Pulley, Carbon Cage, Black Shoes & Insoles - High-tensile steel wire bead

- High-tensile steel wire bead

Manufacturer Part Number: SCO020269N0100

- Compression rib cuff helps prevent fatigue by increasing blood flow

Manufacturer Part Number: SK057

124678-Q0-L

CeramicSpeed OSPW X Pulley Wheel System for Shimano GRX/RX 2x11 - Coated Races, Alloy Pulley, Carbon Cage, Black Shoes & Insoles - High-tensile steel wire beadThe CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low friction bearings and unique overall design. Features 13 tooth upper and 19 tooth lower, Cerakote coated aluminum pulley wheels with Grade 3 Silicon Nitride balls Robust cage crafted from polyamide and carbon fiber for durability and light weight Coated bearing races increase bearing service life by increasing