Shimano XTR Di2 M9250 GS Mid-Cage Rear Derailleur and Shifter Upgrade Kit - I-SPEC
Wireless technology meets built-in crash recovery in this Shimano upgrade kit. The XTR Di2 M9250 mid-cage rear derailleur shifts at lightning-fast speed and stands up to harsh trail impacts.




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- Includes XTR M9250 mid-cage rear derailleur, XTR M9250 Rapid ES shifter with I-SPEC EV clamp band, BT-DN320 battery, and EC-EN100 charger
- XTR M9250 mid-cage derailleur pairs with a compact 9–45T cassette (not included)—perfect for enduro athletes and weight-conscious XC racers alike
- This derailleur is a slimmer, stronger evolution of the pioneering chain-stabilizing Shadow concept from Shimano
- Updated wedge shape avoids more direct impacts and smoothly glances off rocks if there is a hit
- Mid-cage length provides 23 mm of additional ground clearance for a bash-free ride
- 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
- Wireless Di2 paired with HYPERGLIDE+ technology result in smooth, precise and instantaneous shifts
- XTR M9250 Rapid ES shifter feels instantly natural out of the box, but it can also be molded to fit any hand thanks to its familiar fit and multi-axis, 4-way adjustable design
- Shifter features rubber traction pad, clamp band and single/double mode converter
- Multiple shift modes deliver precision; they include hold-down multishift, tactile click-through double shift, or locked-out single shift
- Programmable third button allows for additional system tuning or third-party connection; assign a function through the E-tube app with full switch and e-bike customization
- Precise, lightning-quick wireless shifting activated by the most adjustable, customizable and satisfyingly tactile shifting switch from Shimano
- Protected snugly within the wireless XTR rear derailleur, the BT-DN320 battery won't budge while it powers fast and smooth shifting
- Battery is completely removable for charging; 310 mAh provides for more riding on a single charge
- Evolution of the Di2 power source gets an updated, easy-to-use charger; the compact EC-EN100 charger keeps your wireless battery charged
Imported.
View the Shimano XTR Product LineView all Shimano Rear DerailleursBest Use | Mountain Biking |
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Derailleur Type | Rear |
Cage Length | Medium Cage |
Max Rear Cog Size | 45T |
Speeds | 12-speed |
Weight | Unavailable |