CeramicSpeed Pulley Wheels for Shimano, 11s NW DJA6_I9SES90

The 12-tooth narrow-wide design on these CeramicSpeed pulleys decreases chain articulation and ensures a crisp chain engagement on to and off of each pulley. The symetrical 12-tooth narrow-wide design allows the chain to move smoothly on and off the pulleys without additional drag. CeramicSpeed Pulley Wheels for Shimano 11s, 12-tooth is developed, designed and handbuilt in Denmark and comes with seperate dust covers to fit 9100 series or R8000 series derailleurs.