Shimano RD-M8250 Deore XT Di2 Wireless 12 speed SGS Rear Mech

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.Key Features:·Robust Design A wide link structure, skid-plate design, durable aluminum plate and solid pulley add robustness and longevity. ·RD Protection FunctionThe 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 ShiftingSustainable, ultra-fast shifting and a no-sacrifice 500% gear range. ·Protected BatteryTucked safely inside an enclosed space, the battery won’t budge even in rough terrain, while remaining easily removable for charging.·Covered Pulleys/CageThe solid pulley and shielded pulley teeth prevent trail debris from jamming up your flow