Shimano XTR Di2 RD-M9250-GS Mid Cage Rear Derailleur 12 Speed R1 a helmet is an indispensable

a helmet is an indispensable companion for you as a cyclist

A sealed mechanism and serviceable cup & cone bearings

100% POLYESTER

This minimizes the need for up-rotated bars

Shimano XTR Di2 RD-M9250-GS Mid Cage Rear Derailleur 12 Speed R1 a helmet is an indispensableOptimized for impact survivability, the 12 speed mid cage M9250 rear derailleur is the choice for both Shimanos top enduro athletes and weight conscious XC racers alike, especially when matched with the 9 45 compact cassette. Featuring all new wireless Di2 shifting, automatic impact recovery, a redesigned wedge shape and 23 millimeters of additional ground clearance for a bash free ride, this rear derailleur stands out for the speed of its shift and