Shimano BT-DN320 Di2 Rear Derailleur Battery bikes Smart Connect

Smart Connect

Perfect bike frame protection - also for wheels and other components

The number code can be set individually

Clearance for up to 34mm tyres for greater versatility

The durable machined aluminum base easily attaches to a variety of handlebar/tube sizes and shapes via a simple-yet-secure O-ring

Shimano BT-DN320 Di2 Rear Derailleur Battery bikes Smart ConnectFull wireless technology means an all new Battery. The BT DN320 fits snuggly and protected within the new Wireless XTR Rear Derailleur and powers the fast and smooth shifting XTR is known for. Protected Battery Tucked safely inside an enclosed space, the battery wont budge even in rough terrain, while remaining completely removable for charging. Longevity 310 MaH provides for more riding on one charge