Shimano XTR M9250 Di2 Wireless Upgrade Kit - Includes M9250-GS Rear Derailleur, M9250-IR I-SPEC EV Shifter, Battery, Charger, Quick Link EA Kit-In-A-Box Mtn Group

Wireless Di2 paired with HYPERGLIDE+ technology result in smooth, precise and instantaneous shifting XTR M9250-GS Di2 wireless 12-Speed Rear Derailleur with medium cage features a wide link structure, skid-plate design, durable carbon plate and solid pulley for robustness and longevity Shadow ES design provides a slimmer, stronger evolution of Shimano’s pioneering chain-stabilizing Shadow concept Automatic Impact Recovery function instantly returns the derailleur to its original position after impact while the wedge shape design avoids more direct impacts, and smoothly glances off rocks if there is a hit, making it Shimano’s most survivable rear derailleur to-date Fast Action XTR M9250-IR I-SPEC EV shifter offers precise, lightning-quick wireless shifting activated by Shimano’s most adjustable, customizable, and satisfyingly tactile shifting switch Tech packed shifter features four-way adjust, two-step double shift or hold down multi-shift and can be finely tuned by assigning a function to the programma