SHIMANO XTR Di2 Rd-M9250 Short Cage Rear Derailleur Black, Gs, 12-Speed (9-45T)
- Wireless Di2 paired with HYPERGLIDE+ technology result in smooth, precise and instantaneous shifts
- Wide link structure, skid-plate design, durable carbon plate and solid pulley add robustness and longevity
- Automatic Impact Recovery function instantly returns the derailleur motor to its original position after impact
- Shadow ES design provides a slimmer, stronger evolution of Shimano’s pioneering chain-stabilizing Shadow RD+ concept
- Wedge shape of Shimano’s most survivable rear derailleur to-date avoids more direct impacts, and smoothly glances off rocks if there is a hit
- Tucked safely inside an enclosed space, the battery won’t budge even in rough terrain, while remaining completely removable for charging