Shimano BT-DN320 Di2 Rear Derailleur Battery Bikes 5 / 3 (2 Pcs)

5 / 3 (2 Pcs) / 4 / 5 / 6 / 8 / 10 Mm

and review post-ride insights—all in one connected experience

The larger chainring is made of 7075 aluminium alloy

Steer Tube Clamp Diameter: 1 1/8"

Shimano BT-DN320 Di2 Rear Derailleur Battery Bikes 5 / 3 (2 Pcs)Full 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