CeramicSpeed OSPW Pulley Wheel System for Shimano 9100/9150 and 8000 SS/8050 SS - Alloy Pulley, Carbon Cage, Black Default:Default Whether you're racing against the

Whether you're racing against the clock or cruising on open roads

Length 85 Lock Style Keyed Advertised Weight 1

All access BackStage pass to the back of your vehicle

including metal housing caps and cable end crimps

Compatible with all Ergopower shift levers

CeramicSpeed OSPW Pulley Wheel System for Shimano 9100/9150 and 8000 SS/8050 SS - Alloy Pulley, Carbon Cage, Black Default:Default Whether you're racing against theThe CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low friction bearings and unique overall design. Key Features Features 13 tooth upper and 19 tooth lower, aluminum pulley wheels with Grade 3 Silicon Nitride balls Robust cage crafted from polyamide and carbon fiber for durability and light weight Hardened steel bearing races Only compatible with Dura Ace 9100 9150