SHIMANO Di2 BT-DN320 BATTERY Cassette & Freewheel Tools Replacement sprocket wheel for Shimano

Replacement sprocket wheel for Shimano XTR CS-M9100

2013 Avail Advanced 1

and city streets

or how tough the conditions

Improved mud shedding capability

SHIMANO Di2 BT-DN320 BATTERY Cassette & Freewheel Tools Replacement sprocket wheel for ShimanoCompletely wireless technology demands a completely new battery. The Shimano BT DN320 is engineered to power the latest wireless XTR, DEORE XT, DEORE and GRX rear derailleurs, delivering fast and smooth shifting with the reliability you expect from Di2. Well protected design ensures durability in demanding conditions. Features Battery: Tucked safely inside an enclosed space, the battery wont budge even in rough terrain, while remaining completely