Mountain Bikes · Public discussion

Spoke length question (wheelbuilding)

Started by Bloocow · · Last activity · 2 posts · 828 views

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Mountain Bikes
Published
20 August 2003
Last activity
20 August 2003
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Bloocow
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  1. Hiya peeps,

    First off I must say I'm extremely grateful to Damon Rinard, Sheldon Brown and some others for the
    great effort put into Spocalc. Due to their efforts, I found out in no time that changing my current
    Surly 1x1 hub to White Industries' Eccentric hub would mean my current spokes are 1.7mm too long.

    I am thinking of re-using the spokes, but have yet to remove tyre and rimtape to see if the spokes
    might poke out too much (cuz I still need to ride). If anyone has been through something similar,
    I'd appreciate your thoughts.

    Further info: current spoke length 3 cross for Surly is calculated to
    264.4mm but I think my spokes are 264mm? White Ind Eccentric needs 262.7 for 3 cross. Mavic
    X517's for both.

    Many thankies,

    bloocow

  2. bloocow said:

    First off I must say I'm extremely grateful to Damon Rinard, Sheldon Brown and some others for the
    great effort put into Spocalc. Due to their efforts, I found out in no time that changing my
    current Surly 1x1 hub to White Industries' Eccentric hub would mean my current spokes are 1.7mm
    too long.

    I am thinking of re-using the spokes, but have yet to remove tyre and rimtape to see if the spokes
    might poke out too much (cuz I still need to ride). If anyone has been through something similar,
    I'd appreciate your thoughts.

    I've used a strange mixture of spokes on one wheel, strictly for hack purposes. The spokes came from
    a cheapish (but not so cheap they were all the same length) dished rear wheel, and I needed to build
    a non-dished SS rear. The spokes were approximately 2mm different (shorter on the drive side). I got
    away with using the longer ones as the "outside" spokes and the shorter ones as "inside" spokes on
    the front hub. In your case this would mean sorting the spokes into two halves - longer and shorter.
    What I mean by "outside" spokes is a spoke which is inserted through the hub from the inside to the
    outside. They seemed pretty even when I'd finished the wheel.

    Quoted message said:

    Further info: current spoke length 3 cross for Surly is calculated to
    264.4mm but I think my spokes are 264mm? White Ind Eccentric needs 262.7 for 3 cross. Mavic X517's
    for both.

    Sounds like you'll get away with it if the existing spokes aren't sticking out when you take the rim
    tape off. I wouldn't be at all surprised if you discovered up to a 2mm variation between the
    smallest and largest of your existing spokes. If they stick out a bit, you can just file them down.
    Also, whenever I have had to replace a spoke, I've measured the old one, and usually had a choice
    between slightly longer or shorter. I've always chosen and never had a problem with slightly longer.

    --
    Jim Price

    jimprice.dsl.pipex.comjimprice.dsl.pipex.com

    Conscientious objection is hard work in an economic war.

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