Shimano XT RD-M8250 Di2 12 Speed Rear Derailleur, Medium Cage (GS)

Shimano XT RD-M8250 Di2 12 Speed Rear Derailleur

• Ultra-Durable Construction: Reinforced aluminium plate, wide-link structure, and skid-plate protection maximise longevity in tough riding conditions.

• Automatic Impact Recovery: Instantly returns the derailleur to its correct position post-impact-no missed shifts or lost alignment.

• SHIMANO SHADOW ES: A new generation of chain-stabilising tech for smoother, quieter operation under load.

• Protected Power: Compatible with the Shimano BT-DN320 - opens in a new tab Di2 battery (sold separately), safely enclosed for impact protection yet easily removable for charging.

• Debris Resistance: Covered pulleys and shielded teeth prevent trail grit and mud from affecting shifting performance.

• Precise Di2 Electronic Shifting: Delivers instant, accurate shifts every time, even under full pedalling load.

The Shimano XT RD-M8250 Di2 12-Speed Rear Derailleur represents the next generation of electronic MTB shifting, built for riders who demand precision, durability, and intelligent performance on every ride. Engineered with Automatic Impact Recovery, an impact-deflecting wedge profile, and covered pulley protection, this derailleur combines high-speed shifting with incredible resilience-so you can ride hard without hesitation.

Designed for the latest Shimano DEORE XT Di2 12-speed drivetrains, the RD-M8250 is available in two cage options:

GS (medium cage) - ideal for 9-45T cassettes for lightweight, compact setups.

SGS (long cage) - compatible with 10-51T cassettes, perfect for wide-range gearing and enduro-style climbs.

Whether tackling technical singletrack or all-day trail missions, the M8250 rear derailleur delivers smooth, instantaneous gear changes and industry-leading reliability-ride after ride.

Technical Specifications

• Speed: 12-speed

• Shifting Type: Di2 Electronic

• Maximum Cassette Size: GS (45T) / SGS (51T)

• Cage Options: GS - Medium / SGS - Long

• Compatible Chain: Shimano HG 12-speed

• Model Numbers: RD-M8250-GS / RD-M8250-SGS

• Battery Compatibility: BT-DN320 - opens in a new tab (sold separately)