What size spoke for 26inch mtb wheel- Mtbr.com
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  1. #1
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    What size spoke for 26inch mtb wheel

    Hi
    i am a newbie having just bought a used mountain bike, it has a broken spoke in the rear wheel on drive side, which I want to renew, but Iím not sure what size spoke it is.
    The wheel is 26inch, how do I find out what size spoke is needed, I am uploading a pic of the front wheel, thanks
    Attached Thumbnails Attached Thumbnails What size spoke for 26inch mtb wheel-63e09ff1-d869-4ee2-9e09-78fa847e0041.jpg  


  2. #2
    since 4/10/2009
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    you have to measure it

  3. #3
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    Quote Originally Posted by Harold View Post
    you have to measure it
    Ok thanks Harold

  4. #4
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    you have to measure it and get within 1mm of accurate for the replacement spoke to work. spokes typically come in size intervals of 1mm.

    if it's too long, the nipple might not be able to thread on all the way and the spoke will stick out into the rim and puncture the tube. too short and the nipple will not fully engage the spoke and the nipple will break.

    I would take it to a shop and have them measure it and make sure you buy exactly the correct length. they should have a special ruler that makes this more accurate.

  5. #5
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    Different rims have different internal diameters and so do hubs by brand and models which is why there is nobody who could guess what size spoke you will need. The only thing we can tell you is that is a 3x lacing pattern.

    Harold wasn't off by his suggestion, you could measure the broken spoke or one of the existing one from the same side the broken one was on and hopefully you're measurement is good to within 1mm.

    Best bet is to take it into a shop and have them replace it for you unless you're savvy with truing your wheel with the new spoke.

  6. #6
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    .....
    "Put your seatbelt back on or get out and sit in the middle of that circle of death." - Johnny Scoot

  7. #7
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    Quote Originally Posted by Trinimon View Post
    Different rims have different internal diameters and so do hubs by brand and models which is why there is nobody who could guess what size spoke you will need. The only thing we can tell you is that is a 3x lacing pattern.

    Harold wasn't off by his suggestion, you could measure the broken spoke or one of the existing one from the same side the broken one was on and hopefully you're measurement is good to within 1mm.

    Best bet is to take it into a shop and have them replace it for you unless you're savvy with truing your wheel with the new spoke.
    Thanks Mack and Trinimon for your great advice, itís much appreciated

  8. #8
    since 4/10/2009
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    Quote Originally Posted by Trinimon View Post
    Harold wasn't off by his suggestion, you could measure the broken spoke or one of the existing one from the same side the broken one was on and hopefully you're measurement is good to within 1mm.

    Best bet is to take it into a shop and have them replace it for you unless you're savvy with truing your wheel with the new spoke.
    I mean, this is what the shop is going to do. With this tool:

    https://www.parktool.com/product/spo...er-gauge-sbc-1

    It can be tricky if the old spoke is mangled or missing, so sometimes they might pull another spoke that's intact to check. They've likely done it enough that they can guesstimate pretty well with the old one, assuming you have all the pieces.

    I wasn't really even suggesting that OP do this himself, either. I was directly answering the question of how to find out the correct length of spoke needed.

  9. #9
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    I've successfully measured many spokes using a machinists rule held up against an installed existing spoke. You gotta carefully eyeball where the crook of the bend is and measure to the start of the nipple, then add the length of the nipple and go 1-2 mm shorter.
    What, me worry?

  10. #10
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    Quote Originally Posted by Lone Rager View Post
    I've successfully measured many spokes using a machinists rule held up against an installed existing spoke. You gotta carefully eyeball where the crook of the bend is and measure to the start of the nipple, then add the length of the nipple and go 1-2 mm shorter.
    Thanks for your advice Harold and Lone Ranger, I will try and measure the spoke, but i will probably take it to the bike shop....itís all a learning curve, but an enjoyable one, thanks again

  11. #11
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    Quote Originally Posted by DaveT9 View Post
    Hi
    i am a newbie having just bought a used mountain bike, it has a broken spoke in the rear wheel on drive side, which I want to renew, but Iím not sure what size spoke it is.
    The wheel is 26inch, how do I find out what size spoke is needed, I am uploading a pic of the front wheel, thanks
    It will be tough to swap a drive side rear spoke if you don't have the tool to remove the cassette. Your LBS will probly charge you a bit to do all that. Labor = Wheel true + cassette swap, + ~$1 for a spoke.
    It's still worth it to have it right. Look for other suspect spokes while it is apart.

    -F
    It's never easier - you just go faster.

  12. #12
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    if you take it to a shop they may try to tell you, you need whole new wheelbuild entirely, and I'd agree. in the front wheel pic them spokes don't look so hot and mighty rusted, if rear is as bad, you may be snapping spokes every hard ride
    "Put your seatbelt back on or get out and sit in the middle of that circle of death." - Johnny Scoot

  13. #13
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    You might want to deflate that tire and straiten that valve stem ,if tire pressure gets too low or you brake really hard you could move the tire enough to rip the stem from the tube ,or just tear it either way time for a new tube.

  14. #14
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    Quote Originally Posted by rangeriderdave View Post
    You might want to deflate that tire and straiten that valve stem ,if tire pressure gets too low or you brake really hard you could move the tire enough to rip the stem from the tube ,or just tear it either way time for a new tube.
    Thank you for your advice, Fleas, 127.0.0.1, Rangeriderdave

  15. #15
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    Quote Originally Posted by 127.0.0.1 View Post
    if you take it to a shop they may try to tell you, you need whole new wheelbuild entirely, and I'd agree. in the front wheel pic them spokes don't look so hot and mighty rusted, if rear is as bad, you may be snapping spokes every hard ride
    Good eye. I never zoomed on that picture. Considering that, new wheels are probably a better option.

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