Optimized for impact survival, the 12-speed M9250 medium cage rear derailleur is the ideal choice for both top-tier Shimano athletes and weight-conscious XC racers, especially when paired with the 9-45 compact cassette. Featuring new wireless Di2 shifting, automatic impact recovery, a redesigned wedge shape, and an additional 23mm of ground clearance for bump-free riding, this rear derailleur stands out for its shifting speed and ability to keep racers competitive on the trails.
- Robust Design: The wide link structure, guide plate design, carbon plate durability, and pulley solidity add toughness and long life.
- RD Protection Function: The new Automatic Impact Recovery function instantly returns the derailleur to its original position after an impact.
- SHIMANO SHADOW ES: The slimmer, tougher evolution of SHADOW, Shimano's pioneering chain stabilization concept.
- Precise, crisp wireless shifting: Wireless Di2 paired with HYPERGLIDE+ technology ensures smooth, precise, and instantaneous shifting.
- Wedge Shape: The new wedge shape of Shimano's toughest-ever rear derailleur avoids direct hits, and upon impact, it moves away from rocks.
- Protected Battery: Safely hidden within an enclosed space, the battery doesn't move even on the roughest terrain, while remaining fully removable for charging. *Battery sold separately.