Mechanics and Fixing Any Questions Answered

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  • Get a hammer and a couple of bits of wood and knock it back (closer) into line

  • They're no harder to rebuild that anything else if everything is pretty new and you've got a decent tool (not the included plastic one), Mavic don't seem to believe in preparing spokes/rims/threads and/or British weather though so they often get seized which does make it a pain in the arse, especially reusing spokes.

  • I had a wheel with a mtb rim that used those nipple cups and I had to replace a pile of the spokes or nipples or something, can’t remember exactly.

    I bought the metal tool and a load of the cups, wasn’t too expensive.

    As Snotty said, the threads were all dry so there was a lot of oxidisation around, made unscrewing some of them a bit difficult but it was fine. Chucked some grease on them when I reassembled. It’s an extra step in the build process but it’s definitely not the end of the world.

  • I have the Park spoke nipple tool which would work on those.

    Let me kn9w, only caveat is I need a deposit for it due to some tools not being returned in the borrowing thread.

  • I need to replace my stem clamp fasteners as they’re nearly rounded out. The current setup is an M4 bolt with an M4 recessed nut with a hex top to stop it turning when you tighten. A bit like a rim brake nut?

    I need something to replace the rounded nut at short notice (this weekend), I would use a normal nut but the cavity is slightly recessed and I can’t tighten a normal one. My LBS didn’t have an M4 sized recessed nut. What can I try instead? A longer bolt and a stack of normal nuts to keep me going this weekend?


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  • Cut a slot in the head so you can resort to a screwdriver if necessary?

  • Looks like M5 to me.

    Carbon stem, always use grip paste and a torque wrench if you don't already do.

  • Looks like M5 to me.

    This, I have a Deda (I think) seapost that uses a simlarly shaped sleeve nut type deal.

    One of these,

  • Also, might the nut from a v brake pad be the right size? Might need a longer bolt to engage with it though.

  • V brakes are M6 ain't they?

  • What's rounding, the bolt heads? Just use the same nuts and new bolts.

  • It’s the odd size nuts that are rounding unfortunately. The bolt would be a straight swap otherwise. I have a spare rim brake calliper nut but it’s too big.

    Think this is M4?


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  • Don't use the thin bits of the caliper jaws. Put the chonky/flat part of the jaws over the actual threads of the bolt and measure there.

  • Ah. Every day is a school day etc. Guess that’s a 5 then. thanks


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  • Hi, this is potentially a very noob question, but do you get SRAM brifters with a brake release on them like this?
    https://www.tektro.com/products.php?p=72
    (ideally to work with a 10speed SRAM groupset)

    I have Cantilever brakes with SRAM brifters, but I can’t remove the wheel without deflating it or disconnecting the brakes.

    On a different bike, I had those tektro brake levers, and that release worked well.

    Is there a better solution I'm missing?

    I'm trying to get everything ready to try tubeless, but it just occurred to me I can't get an inflated tyre past my brakes.

  • I have Cantilever brakes with SRAM brifters, but I can’t remove the wheel without deflating it or disconnecting the brakes.

    Disconnecting the brakes how exactly? Most cantilever brakes have a quick release method to allow you to remove the wheel. Like in this:

    https://www.youtube.com/watch?v=cvo03zBTkOw&ab_channel=MadeGoodBikes

  • So I've got tektro 720s but there's not enough length on the straddle cable to get the nipple out, so disconnecting the brakes means undoing the clamp.

    Do you think I need to fiddle with the set-up a bit then?
    I quite like the way they brakes feel so ideally wouldn't increase the straddle length that much.

    Edit: So I think you’re right, the answer is probably to fiddle with the set-up so I get the mechanical advantage I want, but with enough length in the straddle cable to still be able to unhook the nipple. Thanks!

  • You'll have to accept a lot of things as a canti user, this is one of the easiest, just deflate your tyre a bit.

  • .


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  • Any chance that was posted this morning?

  • A longer bolt, a spacer that fits in the recessed cavity and a nut poking out.
    You can order this in the long run or something similar, there's many brands with this solution, someone should sell spares
    [https://www.google.com/shopping/product/1?

  • Not even an oval chainring, april 1st'ers need to step up their game.

  • Also a fail on account of oval chainrings wouldn't have an effect on tension like described

  • Depends on the crank position when you adjusted the chain tension. There is a small variation in tension as the chainring rotates, so it would either go a bit slack or bind up.

    Although Sheldon says it's small enough to still be rideable, but Sheldon can ride anything:
    https://www.sheldonbrown.com/biopace.html

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Mechanics and Fixing Any Questions Answered

Posted by Avatar for OmarLittle @OmarLittle

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