CeramicSpeed Shimano OSPW System Model:Standard AHRI-certified performance

AHRI-certified performance

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enhancing stability and comfort on rugged trails

CeramicSpeed Shimano OSPW System Model:Standard AHRI-certified performanceProven 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