Shimano BMR1 and BRM2 Di2 External Battery Mount Base Unit A
Shimano BMR1 and BRM2 Di2 External Battery Mount Base Unit A. Shimano Di2 External Battery MountsAll Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctionsUse Di2 system
Category: Cycling Supplies
Shimano BMR1 and BRM2 Di2 External Battery Mount Base Unit A. Shimano Di2 External Battery Mounts

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