CeramicSpeed OSPW Pulley Wheel System for Shimano 9100/9150 and 8000 SS/8050 SS - Alloy Pulley Carbon Cage Black. The CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low
CeramicSpeed OSPW Pulley Wheel System for Shimano 9100/9150 and 8000 SS/8050 SS – Alloy Pulley Carbon Cage Black. The CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low-friction bearings and unique overall design.
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