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  • Thanks : )

    Yes I think under the mudguard is my preferred method.
    The frame builder won't drill the forks for internal routing so we're using little loop-shaped braze-ons to pass it up the inside of the fork blade.

    It's the exact details of how it changes direction at the top of the fork blade and goes under the mudguard that's difficult to find proper info on.

    So far I'm thinking the journey looks like this, with unresolved bits in bold:

    1. Out of the back of the light
    2. Through a little rubber grommet (maybe an angled one like this to get the transition smoother)
    3. Under the mudguard somehow (how do you secure it safely under there?)
    4. How does it get from under the guard to the first loop at the top of the fork blade?
    5. Then down the fork to the connector on the hub.

    Here's a picture of it mocked-up on my (very dirty) other bike:

  • Can you put another grommet on the side of the mudguard, and an adjacent eyelet as high up the fork leg as possible? The hard part is going to be keeping it off the tyre.

    Duct tape should protect the cable a little bit from tyre rub. Not likely to be a problem on your front mudguards but can be on rears.

  • Yes that's a good idea... I think I'm gonna try these Di2 grommets and run the wire along the inside of the ridge in the mudguard where there might be a tad more space.

    I'll try and place the exit point just behind the caliper, so it's kind of hidden but the wire has enough space to turn the corner to the fork without adding too much stress on the tape.

    If all else fails I'll just keep it on show and run it over the top of the brake.

    Kind of handy for dynamo light fans that Di2 got invented.

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