5 (612) · $ 70.00 · In stock
The Shimano Di2 BM-DN100 External Battery Mount - Long allows for mounting the BT-DN110 battery to the frame's water bottle cage mounts with external wiring. The mount allows for wireless communication with the EW-WU101 wireless data transmitter unit and Bluetooth components. Battery sold separately.
Shimano Di2 External Battery Mounts. All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions.
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