Shimano EW-RS910 Junction A for Internal Bar/Frame Mount

The Shimano EW-RS910 is a Junction-A box for Internal Bar or Frame mounts, connecting the various parts of the Shimano Di2 drivetrain. Mounting simply and easily to either a bar end or dedicated ports that some frame manufacturers are including in the frames, the EW-RS910 makes an easily accessible charging port and a clean aesthetic that makes any bike look like a streamlined race machine.