Shimano Deore XT Di2 RD-M8250-SGS Long Cage Rear Derailleur 12 Speed CASSONS Pressure type: High volume

Pressure type: High volume

and efficiency

ROLLR provides power readings to within +/-1% accuracy of the power meter

works with all GoPro HERO Original

Shimano Deore XT Di2 RD-M8250-SGS Long Cage Rear Derailleur 12 Speed CASSONS Pressure type: High volumeThe all new DEORE XT M8250 long cage derailleur paired with a standard 10 51T M8200 cassette 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. Specifications Robust