Shimano XTR Di2 RD-M9250-GS Mid Cage Rear Derailleur 12 Speed cassons Simply the fastest

Simply the fastest

Grip Damper 3Pos

This effectively controls exercise intensity

The wheels on the KICKR HEADWIND allow you to roll the fan into position when it is attached to your KICKR DESK

Shimano XTR Di2 RD-M9250-GS Mid Cage Rear Derailleur 12 Speed cassons Simply the fastestOptimized 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