Shimano XTR RD-M9250-SGS-A Di2 Wireless Rear Derailleur - 12-Speed, Long Cage, Shadow ES, Black/Gray Transition Whether you're an avid trail

Whether you're an avid trail enthusiast or a competitive rider

emphasizing a feather-light feel without compromising strength

featuring a SmartForm C1 alloy frame with 150mm front and 140mm rear suspension

or fast-paced all-road riding

even in wet conditions

Shimano XTR RD-M9250-SGS-A Di2 Wireless Rear Derailleur - 12-Speed, Long Cage, Shadow ES, Black/Gray Transition Whether you're an avid trailThe Shimano Di2 XTR M9250 wireless long cage derailleur paired with a standard 10 51t M9200 cassette (cassette sold separately) gives riders and racers the speed, range, and robustness to tackle every trail on the mountain. With built in Automatic Crash Recovery, an impact deflecting shape, and simple covered pulley solutions, this derailleur stands up to harsh trail impacts and still retains its lightning quick shifting speed and top level performance