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  1. #1
    Senior Member hockeyteeth's Avatar
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    Spoke length calculation help, please!

    So I hastily purchased a rear track hub on eBay the other day, thinking I'd just use some spare spokes I had. But then I realized my spare spokes were laced to a low flange hub and the new hub is high flange. So now I need to buy some spokes to lace this beast up, but problem is I can't find any specs on the internet for the hub's measurements. The hub is just a ****ty 36 hole rear track hub made by Dimension and I will be lacing it to a 700c Mavic MA40 with a standard 3x pattern. Is there a fairly standard spoke length for lacing high flange hubs like this? Or maybe someone knows a way to calculate the flange diameter and center to flange distances so that I can buy the right length spokes?

    Here's the same hub I bought: http://www.universalcycles.com/shopp...&category=1701

  2. #2
    \,,/(^_^)\,,/ new_dharma's Avatar
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    try here...there is a spoke calculator
    DT Swiss

    others: there are others...Here, or here...google "Spoke Calculator"...it's a start
    Last edited by new_dharma; 12-27-06 at 07:57 PM.
    You know you're getting old when you look at a beautiful 19-year-old girl and you find yourself thinking, "Gee, I wonder what her mother looks like?"

  3. #3
    Senior Member hockeyteeth's Avatar
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    Yeah, I already found out how to calculate the necessary spoke lengths, but I can't perform the calculation without knowing measurements of the hub. I need to know the best way to approximate (if it comes to that) the length of the spokes I need. Thanks for the link, though.

  4. #4
    \,,/(^_^)\,,/ new_dharma's Avatar
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    i've used a ruler (metric) to get the dimensions close...
    You know you're getting old when you look at a beautiful 19-year-old girl and you find yourself thinking, "Gee, I wonder what her mother looks like?"

  5. #5
    Senior Member hockeyteeth's Avatar
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    Oh, sick. That's the answer I was looking to hear! Did the spokes lace up properly once you built the wheel?
    Last edited by hockeyteeth; 12-27-06 at 08:23 PM.

  6. #6
    \,,/(^_^)\,,/ new_dharma's Avatar
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    they did...none of my old hubs are listed in the online calculators, so I need to measure. granted, I had my LBS doublecheck on my first attempt.

    the hard part is the rim, being so big...also, you need to allow for the spoke-nipple.

    do all the measurements...then do it again (measure twice, cut once)
    You know you're getting old when you look at a beautiful 19-year-old girl and you find yourself thinking, "Gee, I wonder what her mother looks like?"

  7. #7
    Senior Member hockeyteeth's Avatar
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    Awesome. I was worried I wouldn't be able to use the hub, haha. Thanks for the help!

  8. #8
    \,,/(^_^)\,,/ new_dharma's Avatar
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    good luck!
    You know you're getting old when you look at a beautiful 19-year-old girl and you find yourself thinking, "Gee, I wonder what her mother looks like?"

  9. #9
    Senior Member Retro Grouch's Avatar
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    I got the hub dimensions from QBP website but they didn't have a MA40 rim listed.

    Hub flange diameter = 62mm both sides.
    Hub center to flange = 28mm both sides.

    Incidentally, with a Mavic MA3 rim the spoke length is 290mm for both sides.

  10. #10
    Senior Member hockeyteeth's Avatar
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    You are a god! I know an online calculator that has the MA40 just to make sure the 290mm spokes will work. Thanks a million, Grouch!

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