BM-DN100-S, Battery Mount for EW-SD50, Short, for External
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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Shimano Di2 BM-DN100-S Battery Mount short internal/external
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Shimano Di2 External Battery MountsFeatures:All Di2 components on the bicycle require the same firmware version. Using Di2 components with different
Shimano BMDN100 Di2 Long Battery Mount for External Wiring
All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions Use
Shimano BMDN100 Di2 Long Battery Mount for External Wiring