Shimano Xtr M9250 Di2 Rd-sgs Sw-r Upgrade Kit

- Robust Design: A wide link structure, skid-plate design, durable carbon plate and solid pulley add robustness and longevity.- RD Protection Function: The 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 concept.- Precise & Clean Wireless Shifting: Wireless Di2 paired with HYPERGLIDE+ technology result in smooth, precise and instantaneous shifting.- Wedge Shape: The new wedge shape of Shimano's most survivable rear derailleur to-date avoids more direct impacts, and smoothly glances off rocks if there is a hit.- Protected Battery: Tucked safely inside an enclosed space, the battery won't budge even in rough terrain, while remaining completely removable for charging.- Ergonomic Evolution: Familiar fit and multi-axis adjustability provide natural-feeling when shifting.- Fast Action: Precise, lightning-quick wireless shifting activated by Shimano's most adjustable, customizable, and satisfyingly tactile shifting switch.- Finely Tuned: Assign a function to the programmable third button through the E-TUBE app, with full switch and e-bike customization.- Feature Rich: Tech-packed, with a four-way adjust, two-step double shift or hold down multi-shift, rubber traction pad, I-SPEC EV clamp band and single/double mode converter.- Longevity: 305 mAh provides for more riding on one charge.- New Power Source: The evolution of the Di2 power source also gets a new and easy to use charger.