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Feature
CeramicSpeed Shimano 11-speed Pulley Wheels Alloy Black
Description
CeramicSpeed Pulley Assemblies for OSPW system only.FeaturesGrade 3 ceramic balls, hardened races and low-friction seals Precision machined aluminum pulleys Spacers included where applicable Not compatable with 9100/9150 OSPW Precision machined aluminum pulleys