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  • Any advice re cable routing would be very helpful, thanks.

    First dynamo set up, for girlfriend's bike that gets parked in public quite a bit so needs to be fairly robust. No obvious options for running things internally (except rack, see q below). She locks up via seat or top tube so have opted for a path via downtube.

    Start: BM Cyo N Plus (standard bracket), finish: rack-mounted BM Toplight. I've added (too) small numbers where I've got particular questions

    1, 2 & 3- is running it through the spare downtube cable adjuster braze-on (1) around the bottle lugs (2) or bottom bracket guides (3) useful or will that just fret the cable in time?
    4 - the Tubus rack leg is open at the bottom so drilling a hole at the top would let me run it through and get it out of the way of bags - is this ok to do?

    Also, I have no real clue as to how many loops round the downtube I should do and if anyone can point to a comprehensive idiot's guide to cable routing, I'd love to see. Easy to overthink this and perhaps I am but have spent a bit of time here and elsewhere but haven't seen anything Sheldon-like in basics + detail.

    Thanks all.

  • You can run the wire on the inside of your GB mudguards, where the metal is folded over. Is easy to do and looks neat. I wouldn't bother with trying to run is through the cable adjuster / around lugs and guides, just a couple of small zip ties are enough, and means you don't have to coil it around the downtube.

  • Rather than corkscrewing it around the tubes, I'd be inclined to attach it to the rear derailleur cable to get it down to the BB. Neatest would be heat shrink, although that would mean undoing the cable. Zip ties or spiral wrap would be an alternative. Then zip tie it to the chainstay before running it through the mudguards as psb suggested. Should give a pretty much invisible installation.

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