CeramicSpeed Oversized pulley wheel system for Shimano 10+11 (Ultegra+Dura Ace) aluminium red

Developed and designed fully by CeramicSpeed, the oversized pulley wheel system (OSPW) for Shimano 9000/6700 will fully optimise transition on your bike.The upper and lower oversized aluminium pulley wheels with 17 teeth come fitted with either standard or coated CeramicSpeed bearings.The oversized pulley wheel system (OSPW) is the chosen product for many of the world's best professional cycling teams and triathletes.This specific system is compatible with Ultegra 6700/6770/6800/6870 mechanical and Di2 rear and Dura Ace 7900/7970/9000/9070 mechanical and Di2 rear derailleurs.Contents:- A complete 17-tooth OSPW system- CeramicSpeed bearing oil in 10ml dropper bottle