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I drilled my tubus rack for dynamo routing 😬 :)
Hope it’s alright!
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You could use gear cable liner on the exposed cable to prevent rub on the Dyno wire
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micro tube, not sure at the moment - where did you use yours?
I used mine in a different sort of set up to yours, no rack. Ran wire up the back of the seat tube and used the hose to protect it thinking I might not always have mudguards on. On the down tube I heat shrunk the wire itself along the brake hose. The hose is fairly flexible and would work well clipped inside a mudguard.
MCamb
PhilDAS
Sergeant_Pluck
@adamdenw
Great, thanks @psb and @Brommers - just to check, if the rear derailleur cable is unsealed then pegging the dynamo cable to it whether via zip-tying/heatshrinking is ok, the movement doesn't bother it over time? Suppose best to make sure slack either end?
Not sure I can run inside the mudguard as the folded edges are sealed at the ends + the guard starts well below the BB and ends well after the light fitting on the rack so would be a lot of doubling back/saggy loops unless I drilled early entrance/exit holes. But I could ziptie/heatshrink piggyback along the RD cable along the driveside chainstay then possibly up the rack leg (once I've thought about whether drilling a hole would be ok. It'd have to be 3mm diameter, not insignificant...)
And thanks @Sergeant_Pluck - those links are very helpful and I didn't know about coloured zip ties which would be good. Cheers too for the micro tube, not sure at the moment - where did you use yours?
Edit, just read a discussion on the CTC forum about drilling into a Tubus rack (albeit a Ti one). Consensus is bad idea. Also hadn't thought about rubber grommets to stop the rubbing so a 3mm hole becomes at least 4mm for the grommets+cable and that seems way too much for a fairly minimal rack.