CeramicSpeed OSPW System, Compatible with Shimano 9100/8000, Standard - Black Lubricants Manufacturer Part Number: BB1USA-100

Manufacturer Part Number: BB1USA-100

Manufacturer Part Number: DROPOUT-143

KN1289 591404

150509-Q0-LRET

especially on the carbon-cupped 2010 and 2011 models

CeramicSpeed OSPW System, Compatible with Shimano 9100/8000, Standard - Black Lubricants Manufacturer Part Number: BB1USA-100Proven 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