Shimano BMR2S1 Di2 Small External Battery Mount
$160.00
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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 For use on frames that have a specific Di2 battery mounting location on the chainstay or down tube Compatible with both internal and external wiring kits 10mm mounting bolts
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