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shimano-ew-rs910-di2-junction-a-box-internal
shimano-ew-rs910-di2-junction-a-box-internal-packaging

Shimano EW-RS910 Di2 Internal Junction A Box

Designed for use as a bar-end on drop handlebars or with designated frames, the RS910 junction is a 2-port option for internal E-TUBE wire routing, charging, battery monitoring, and shift mode switching.

Specifications
Built-in type Junction-A for specific frame or handlebar end
Please check with manufacturer for compatibility

Mfr Claimed Weight
11g