Shimano Deore XT RD-M8250-SGS Di2 Wireless Rear Derailleur - 12-Speed Long Cage Shadow ES Black/Gray

Shimano Deore XT RD-M8250-SGS Di2 Wireless Rear Derailleur - 12-Speed, Long Cage, Shadow ES, Black/Gray 
The Shimano Deore XT M8250 long-cage derailleur paired with a standard 10-51t M8200 cassette (cassette sold separate) gives all types of riders the range and robustness to tackle every trail on the mountain. With built-in Automatic Impact Recovery, a new, impact-deflecting wedge shape, and simple covered-pulley solutions, this derailleur stands up to harsh trail impacts and still retains its lightning-quick shifting speed and high level of performance.

Di2 technology results in precise and clean wireless shifting
Pinpoint, ultra-fast shifting, and a no-sacrifice 510% gear range
Wide link structure, skid-plate design, durable aluminum plate and solid pulley add robustness and longevity
Automatic Impact Recovery function instantly returns the derailleur motor to its original position after impact
Shimano Shadow ES technology delivers a wedge-shaped design that reduces the derailleur’s front-facing surface area and eliminates edges that could catch on rocks and roots
Tucked safely inside an enclosed space, the battery won’t budge even in rough terrain, while remaining easily removable for charging
Model: Deore XT RD-M8250-SGS Di2 12-Speed Wireless Rear Derailleur
Brand: Shimano
Color: Black/Gray
Largest Cog: 51
Rear Derailleur Mount Type: 10x1 Standard , Shimano Rear Direct Mount
Chain Wrap Capacity (teeth): 41
Cage Length: Long SGS
Rear Der/Shifter Compatibility: Shimano Mountain Di2
Drivetrain Speeds: 12
Manufacturer Part Number: IRDM8250SGSB
UPC: 192790747743