SHIMANO Di2 BT-DN320 BATTERY Bottom Bracket & Pedals Tools self-sealing bottle cap with a

self-sealing bottle cap with a high water flow valve plus an optional dirt cover

Insulating PrimaLoft® Energy main body fabric performs in a wide range of temperatures

because a lighter bike is one that's easier and more fun for your youngster to ride

The wider rim profile maintains excellent aerodynamic efficiency while shedding grams where it counts most

SHIMANO Di2 BT-DN320 BATTERY Bottom Bracket & Pedals Tools self-sealing bottle cap with aCompletely 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