SHIMANO Di2 BT-DN320 BATTERY Bottom Bracket & Pedals Tools OmniCal - swap chainrings without

OmniCal - swap chainrings without affecting accuracy

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

and with an extra fastening bracket it allows the child bike seat to be switched from one bike to another in seconds

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

SHIMANO Di2 BT-DN320 BATTERY Bottom Bracket & Pedals Tools OmniCal - swap chainrings withoutCompletely 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