CeramicSpeed OSPW System, Compatible with Shimano 9100/8000, Coated - Black Disc Parts - Damper: Low speed rebound

- Damper: Low speed rebound in addition to high and low speed compression adjustable

KL6071 BR1120 13423

SP4375 HB4262

and more secure chain travel

UPC: 711484190582

CeramicSpeed OSPW System, Compatible with Shimano 9100/8000, Coated - Black Disc Parts - Damper: Low speed reboundProven 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