Shimano XTR M9250 Di2 Wireless Upgrade Kit Rear Derailleur Type:M9250-GS Replacement pins use M4 threading

Replacement pins use M4 threading and 3mm Allen for install/removal

Co-molded body

Pair Defined Color Black

Aluminum / Engineering grade polymer

Shimano XTR M9250 Di2 Wireless Upgrade Kit Rear Derailleur Type:M9250-GS Replacement pins use M4 threadingRobust. Resilient. Ready for Anything The Shimano XTR Di2 12 Speed Upgrade Kit provides riders with the pinnacle of wireless MTB shifting technology. The kit features an all new XTR M9250 Di2 wireless rear derailleur that's optimized for impact survivability to make it the choice for both Shimano's top enduro athletes and weight conscious XC racers alike. With built in Automatic Impact Recovery an impact deflecting shape and simple covered pulley