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  1. #1
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    Spoke Length Double Check

    Formulas to open pro, 3 cross, I got 296mm does that work out to you guys?
    "tongue is big, like dog"

  2. #2
    Yo!
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    What ERD did you use?

    I used 605 when I built to WI hubs, and they were just poking through the tops of the nipples, AKA, just a bit long. Mavic advertises nipple seat diameter at 602, so they tell you to add 3mm for the ERD.

    If I built them over again I'd build using an ERD of 603.

  3. #3
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    Okay so when you're using a spokcalc its (for 700c) 622- the diameter of your rim right?
    "tongue is big, like dog"

  4. #4
    Yo!
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    Give me the formula hub specs (c-f, flange diameter) and let me see what I come up with.

  5. #5
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    62 flange diameter 31.0 cf 120 old
    "tongue is big, like dog"

  6. #6
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    yeah using a 602 I got 290,
    "tongue is big, like dog"

  7. #7
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    does [I]that [I]seem correct?
    "tongue is big, like dog"

  8. #8
    Riding Engineer Tomo_Ishi's Avatar
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    I am getting 292mm on ( http://lenni.info/edd/ )

    Complete wheel data

    Hub


    • Formula - flip/flop
    • Right flange : 62
    • Left flange : 62
    • Centre to right flange: 31.8
    • Centre to left flange: 31.8
    • Spoke hole : 2.7


    Rim


    • Mavic Open Pro (ERD is Mavic's Nipple Seat Dia + 3mm for nipples)
    • Effective rim : 605
    • Offset spoke bed: 0


    Spoke length
    for 32 spokes


    Crosses Right Left Tension L/R
    0 272 272 100%
    1 274.6 274.6 100%
    2 281.9 281.9 100%
    3 292.4 292.4 100%
    4 304.4 304.4 100%
    Last edited by Tomo_Ishi; 01-06-10 at 07:47 PM.

  9. #9
    Senior Member filtersweep's Avatar
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    How many spokes are you using....?

  10. #10
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    32, Thanks Tomo_ishi. I've been getting varied numbers. But thats the answer thats come up most. I might try and stretch it with 294 because I can get DT competitions in that size for a nice price
    "tongue is big, like dog"

  11. #11
    N-Fred ichitz's Avatar
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    the cheapest I found so far is 88 cents for both spoke and nipple @ wheelbuilder.com
    http://www.wheelbuilder.com/store/dt...ted-spoke.html

    if u know any cheaper ones, plz share
    Quote Originally Posted by dsh View Post
    Quote Originally Posted by fixedgear80 View Post
    once you go fixed.....
    ...you generally go back in like a year.
    http://i39.photobucket.com/albums/e1...ig_mercier.jpg http://i39.photobucket.com/albums/e1...ig_3rensho.jpg http://i39.photobucket.com/albums/e1...ig_peugeot.jpg

  12. #12
    Yo!
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    Why use a spoke that's too long for the build to save a few extra dollars?

    Buy your spokes at 292mm if you want to do it right. You'll run out of thread if the spokes are too long, and as I mentioned already, using an ERD of 605 will put that spoke right through the top of the nipple; 292mm is already on the longer side.

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