The XTR M9250 Di2 upgrade kit from SHIMANO quickly and easily transforms an existing mechanical 12-speed MTB shifting system into an electronic gear system. Included in the scope of delivery are the Di2 derailleur – available for 10-51 or 9-45 cassettes, the ergonomically adjustable Di2 shifter, which is mounted directly on the Shimano brake lever, the new Di2 battery, which connects directly to the derailleur, as well as a charger with a USB-C port. The Shimano XTR Di2 derailleur RD-M9250 impresses with its robust construction and is equipped with the new chain stabilizer "Shadow ES." This effectively reduces chain bounce and ensures precise chain guidance at all times. Thanks to its slimmer design, the risk of side impacts is minimized. In the event of an impact, the derailleur automatically protects itself by disengaging the mechanism, which then returns to its original position automatically. The wireless installation makes the conversion particularly time-saving and straightforward. As the chain needs to be opened, a matching replacement chain link is included in the kit. The Shimano XTR M9250 Di2 upgrade kit is designed for 12-speed systems from Shimano and elevates the shifting experience and reliability of gear changes to a new level.