CeramicSpeed OSPW pulley wheel system for Shimano Dura-Ace 9100 Gold

The CeramicSpeed OSPW pulley wheel system for Shimano Dura-Ace 9100 is demonstrated as the fastest pulley system in the world, providing energy savings from 2.4 watts in comparison with standard Shimano.The oversized pulley wheel system (OSPW) for Shimano 9100/9150 and 8000 SS/8050 is an industry-leading product, chosen by many of the world’s best professional cycling teams and triathletes.This OSPW system features an upper pulley wheel with 13 teeth and a lower pulley with 19 teeth to provide full optimisation of the rear derailleurs. The upper and lower aluminium oversized pulley wheels come fitted with either standard or coated CeramicSpeed bearings.Box contents:OSPW 13 tooth/19 tooth full systemCeramicSpeed oil for pulley wheel bearings, 15 ml drip-free bottle.