Shimano BMR1 & BRM2 Di2 External Battery Mount Base Unit ADiscover the Shimano BMR1 and BRM2 Di2 External Battery Mount Base Unit A, designed for seamless integration with your cycling setup. This premium component ensures reliable performance and compatibility with your Di2 system. Engineered for compatibility with Shimano Di2 electronic shifting systems. Durable construction to withstand various weather conditions during rides. Lightweight design that does not compromise on strength or stability. Easy
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Shimano BMR1 & BRM2 Di2 External Battery Mount Base Unit A