Main beam is adjustable fore and aft to centralise the bikes mass

Lower initial spring rate increasing sensitivity

2200mm shifter cable

Why get this: To prepare for the worst or ensure that you can get your rear mech running straight and not miss any laps

Weight: From 850g

Shimano GP-M9250 XTR SGS DI2 Drivetrain Kit - Derailleur and Shifter - 12 Speed - Silver Ignore Retail Brand Rule Main beam is adjustable foreThe XTR Di2 drivetrain kit combines the all new XTR M9250 SGS long cage derailleur with the M8250 SHIMANO RAPID ES shifter, BT DN320 battery, and EC EN100 charger. The derailleur paired with a standard 10 51T M9200 cassette gives riders and racers the speed, range, and robustness to tackle every trail on the mountain. With built in Automatic Crash Recovery, an impact deflecting shape, and simple covered pulley solutions, this derailleur stands up to