Shimano XTR DI2 Drivetrain Upgrade Kit - w/ Derailleur, M9250-IR Shifter, Battery, Charger and Quicklink

The Shimano XTR Di2 M9250 Drivetrain Upgrade Kit allows those already running a Shimano drivetrain to easily install the wireless, electronic XTR derailleur and shift switch system.  The kit includes an RD-M950-SGS XTR Di2 Long Cage 12-speed Rear Derailleur, SW-M9250-IR XTR Di2 Shifter (I-Spec), BT-DN320 Di2 Rear Derailleur Battery, charger, and quicklink.  The kit does not include: XTR crankset, bottom bracket, brake levers and calipers, or brake rotors. *See the Features tab for details about each included component*  FEATURES SPECS FEATURES: RD-M950-SGS XTR Di2 Long Cage 12-speed Rear Derailleur: Robust Design: A wide link structure, skid-plate design, durable carbon plate and solid pulley add robustness and longevity. RD Protection Function: A new automatic impact recovery function instantly returns the derailleur motor to its original position after impact. SHIMANO SHADOW ES:; A slimmer, stronger evolution of Shimano’s pioneering chain-stabilizing Shadow concept.   Precise &