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  • Why use a custom wrench?

    Because why not? It's a #tartmode product, so a custom tool that keeps the flank pressure low (compared with just making it a hexagon) is the least I can do :) Low flank pressure means the tool can be made from aluminium, saving weight in your tool roll.

    In practice, the bolt would be Torx for similar reasons, but I couldn't be arsed to draw it

    would it need some sort of tab on the far nut to stop it from rotating when you turn the Allen bolt?

    No, you're only doing the M5 thread up finger tight. Normal Allen key skewer nuts aren't tabbed or held with a tool, friction alone allows them to stay put when you're tightening them.

    Edit: further question, what's the reasoning behind the different thread pitches?

    Only that M8×0.75 is a thread you already have on your bike. It doesn't have to be different from the 0.8mm pitch on the 5mm end for the skewer to work

    I'd buy it if you could figure out a way to make a set for a tenner

    If you could find your way to ordering 10000 sets, I can probably do them for a tenner each :)

  • Cool, just need to find 9999 friends who like niche bike parts. How many people are on here? ;)

    Normal Allen key skewer nuts aren't tabbed or held with a tool

    The Halo ones referred to above have a tab on the non-allen-key side. Actually maybe on both sides, I can't remember. I accidentally flattened it though by tightening it up without slotting it into the dropout properly. Still works.

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