Shimano Black Shimano Deore XT Di2 M8250 GS DM rear derailleur 2025

Optimized for impact survivability, the 12-speed mid-cage M8250 rear derailleur is the top choice for everyday trail riding, offering unmatched durability, quick and precise shifts, and added weight savings when paired with the 9-45T compact cassette. Featuring all-new wireless Di2 shifting, automatic impact recovery, a 500% gear range, and 23 millimeters of additional ground clearance for a bash-free ride, the M8250 rear derailleur is built to be relentlessly reliable so you are free to focus solely on the trail ahead.

• Robust Design: A wide link structure, skid-plate design, durable aluminum plate and solid pulley add robustness and longevity.
• RD Protection Function: The new Automatic Impact Recovery function instantly returns the derailleur to its original position after impact.
• SHIMANO SHADOW ES: A slimmer, stronger evolution of SHIMANO's pioneering chain-stabilizing SHADOW RD+ Concept.
• Precise & Clean Wireless Shifting: Pinpoint, ultra-fast shifting, and a no-sacrifice 500% gear range.
• Protected Battery: Tucked safely inside an enclosed space, the battery won't budge even in rough terrain, while remaining easily removable for charging.
• Covered Pulleys/Cage: The solid pulley and shielded pulley teeth prevent trail debris from jamming up your flow.
• Total capacity: 36T
• Low sprocket: Max.: 45T, Min.: 45T
• Top sprocket: Max.: 10T, Min.: 9T
• Fluoric coated link bushings
• Guide pulley bearing: Sealed bearing
• Tension pulley bearing: Sealed bearing
• Teeth: 13
• Sunken type pulley screw: TBD
• Di2 connectivity wireless
• Di2 shifting
• Bluetooth® LE custom (*1)|Adjust mode information
• Bluetooth® LE custom (*1)|Di2 battery level
• Bluetooth® LE custom (*1)|Gear position
• Bluetooth® LE custom (*1)|SHIMANO E-BIKE SYSTEMS data items (*3)
• Bluetooth® LE custom (*1)|Compatible with E-TUBE RIDE
• Bluetooth® LE custom (*1)|Compatible with E-TUBE PROJECT
• ANT private (*2)|Adjust mode information
• ANT private (*2)|Di2 battery level
• ANT private (*2)|Gear position
• ANT private (*2)|SHIMANO E-BIKE SYSTEMS data items (*3)
• LED for system status