Pair 1x12 Wireless MTB / Gravel derailleurs and Shifters
Pairing 1x12 fully wireless Di2 MTB shifters and derailleurs can be done in two different ways. With the Shimano mobile app, and without. This page explains both methods.
Medium Cage Rear Derailleur (12-speed)
Deore XT RD-M8250-GS
Optimized for impact survivability, the 12-speed mid-cage M8250 rear derailleur is the choice for both Shimano's top enduro athletes and weight-conscious enthousiasts alike, especially when matched with the 9-45 compact cassette. Featuring all-new wireless Di2 shifting, Automatic Impact Recovery, a redesigned wedge shape and 23 mm 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.
The derailleur is fully wireless, with a BT-DN320 battery inside the derailleur. The battery is taken off the derailleur for charging.
RD Protection Function: The new Automatic Impact Recovery function instantly returns the derailleur to its original position after impact. Protected Battery: Tucked safely inside an enclosed space, the battery won’t budge even in rough terrain, while remaining completely removable for charging.
Battery charging
Charging these batteries is easy - you take out the battery, pop it in the charger, and that's it. After about an hour the battery will be fully charged, and you're good to go.
Specifications
- Model code: RD-M8250-GS
- Series: Deore XT (M8200)
- Speeds: 12
- Number of switches: 1 (function button)
- SD300 ports: 1 (Diagnostics only)
- Battery: BT-DN320
- Total capacity: 36T
- Low sprocket max: 45T
- Low sprocket min: 45T
- Top sprocket min: 9T
- Top sprocket max: 10T
- Pulley teeth: 13T
- Wireless connectivity: Bluetooth / ANT
- Wired shifting: No
- Wireless shifting: Yes
- Clutch: No (Dual Spring)
Related components
View all componentsRelated pages