CeramicSpeed Shimano 9100 Oversized Pulley Wheel System: Coated Alloy Pulley Carbon Cage Limited Edition Blue. 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.
bicycle rust capacity-CeramicSpeed Shimano 9100 Oversized Pulley Wheel System Coated Alloy Pulley Carbon Cage Limited Edition Blue
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