Shimano EW-RS910 E-Tube Di2 Frame MountShimano EW RS910 E Tube Di2 Frame Mount The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor shifting caused by contaminates, corrosion and stretching, but provides effortless gear shifts. This junction A is required to connect the shifters via E tube wires to the down tube junction wire. Features: For either specific frame mount or handlebar end plug mount 2 port design Battery level indicator feature E
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