Feature

●Shimano Dura Ace 9100, big pulley and cage.
●Number of Rotating chain in reduction, and refraction can expect reduction effect to enhance your efficiency reduces friction resistance and is powered from the drop down menu.
●Pulley Teeth Number 12T (upper/16T (lower) up low gear teeth 30T
●pu-ri-bearinguhuruseramikku Ceramic (Ceramic Balls/bearings)
●Compatible with riadyire-ra-simano RD – R9100 reference weight: G


Description

Shimano Dura Ace 9100, big pulley and cage. Full ceramic bearings Specification. ■ Suitable for Shimano Dura Ace 9100 Big pulley cage. ■ Number of rotation; Chain drop and more. Expect a reduction enhance your efficiency reduces friction resistance and is powered from the effect of refraction angle. ■ pulley teeth number 12T (upper/16T (lower) ■ Max Low Gear Teeth 30T ■ pu-ri-bearinguhuruseramikku Ceramic (Ceramic Balls/bearings) ■ riadyire-ra-simano RD – R9100 ■ reference weight: G