Optimized for impact survivability, the 12-speed XTR RD-M9250 medium cage rear derailleur is the choice for both Shimano’s top enduro athletes and weight-conscious XC racers alike, especially when matched with the 9-45t compact cassette (cassette sold separately). 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 its ability to keep riders competitive on the trail.
- 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
| Item Specifications |
| Cage Length |
Medium |
| Chain Wrap Capacity (teeth) |
36 |
| Color |
Black/Gray |
| Drivetrain Speeds |
12 |
| Largest Cog |
45 |
| Rear Der/Shifter Compatibility |
Shimano Mountain Di2 |
| Rear Derailleur Mount Type |
10×1 Standard |
| Rear Derailleur Mount Type |
Shimano Rear Direct Mount |
| Weight |
389 |
Shimano XTR RD-M9250-GS Di2 12-Speed Wireless Rear Derailleur Rear Derailleur UPC: 192790290577
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