SD 300 wires are slightly smaller than sd50 and might be easier to run inside frames. They can be connected to SD50 with adapters.
https://www.bike-discount.de/en/buy/shimano-di2-ew-sd300-ielectric-wire-959914
@davidual started
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SD 300 wires are slightly smaller than sd50 and might be easier to run inside frames.
They can be connected to SD50 with adapters.
https://www.bike-discount.de/en/buy/shimano-di2-ew-sd300-ielectric-wire-959914