Screed OSPW Shimano 9100/r8000

This 11V rear derailleur pin CERAMICSPEED OVERSIZE Shimano R9100 is unique on the market.
A part to improve the fluidity of your transmission and gain precious power for the most demanding competitors.
This component is made of high quality materials: the dropout is made of light carbon fiber and the two 17-tooth Oversize rollers are made of aluminum.
The ceramic bearings have a surface 75% harder than steel to resist any friction.
In this version, the Oversize dropout is compatible with Shimano Dura Ace 9100 rear shifters.