CeramicSpeed OSPW Shimano 9250/8150 Series Coated
CeramicSpeed OSPW Shimano 9250/8150 Series Coated, Made for Shimano Dura Ace 9200 and Ultegra 8100 the CeramicSpeed OSPW Shimano 9250/8150 Series Coated is an oversized pulley wheel system is meant to increase speed. Chosen by top athletes worldwide for road cycling this 13-tooth upper and 19-tooth lower pulley design optimizes the rear derailleur.