Shimano Ultegra Shimano EW-SD50 6770 Ultegra Di2 electric wire -

The removal of traditional mechanical cables in favour of electrical wires not only eliminates poor

Shimano Ultegra Shimano EW-SD50 6770 Ultegra Di2 electric wire -

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 Ultegra Di2 uses a fully removable individual cable system from the battery indicator junction box enabling fine tuning with the correct cable length to each component for easy and tidy fitment EW-SD50 wires are required to connect the junction and#40;either SM-JC40 external or SM-JC41 internal to the

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