CeramicSpeed OSPW System, Compatible with Shimano 9100/8000, Coated - Red Rear Shocks Grip Shift Specific: No

Grip Shift Specific: No

133878-Q0-L

FX0409 RS9128

TZ4290 PU1724 43165

ER3186 SA0275

CeramicSpeed OSPW System, Compatible with Shimano 9100/8000, Coated - Red Rear Shocks Grip Shift Specific: NoProven to be the fastest pulley system, chosen by many of the world's leading cycling teams and professional triathletes Optimized tooth designs offer 3 5 times longer life than standard OE pulleys Standard: low drag with hardened steel races and ceramic ball bearings Coated: metallic layer that covers bearing races making them 75% harder than steel. Even lower friction and highly resistant to corrosion 9100 9150 8000 SS 8050SS is not compatible with