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Old 11-18-10, 09:26 AM   #1
devalious
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Can I lace a 24h to a 32h hub?

Can I lace a 24h to a 32h hub? I'm trying to convert my single speed to fixed.

Thanks
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Old 11-18-10, 09:47 AM   #2
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It gets very complex. You will end up with multiple spoke lengths. Better to get matching parts. This question is much better asked in the mechanics forum.
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Old 11-18-10, 09:54 AM   #3
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Moving to mechanics.
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Old 11-18-10, 10:32 AM   #4
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Specialty racing time trials? forces in stopping a fixed gear bike are high on the street,
sudden stops to not be killed in a collision, a prime example
I'd get a common 32 hole rim for the rear,

sell that rim to the next guy who will be asking will A fit B soon.

maybe that's where this rim came from .. someone else asked a similar question a day or 2 ago.

Last edited by fietsbob; 11-19-10 at 01:40 AM.
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Old 11-18-10, 08:40 PM   #5
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you can lace it if it the hub has uneven dishing, but if you want to lace it to a hub with even dishing on each side, then lace it up to a 36h.

you use 2.19x, or roughly a 2 cross length with +2mm when lacing a 24h rim to a 36h hub. The spokes go in pairs with one hole skipped between pairs.
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Old 11-19-10, 01:38 AM   #6
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Maybe as a front, not a rear , a front you can use a radial lacing skip 4 holes in the hub on each side .
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Old 11-19-10, 01:43 AM   #7
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Is it possible to lace it to a 48h hub?
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Old 11-19-10, 04:29 AM   #8
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Originally Posted by AEO View Post
you can lace it if it the hub has uneven dishing, but if you want to lace it to a hub with even dishing on each side, then lace it up to a 36h.
Could you explain the reasoning there?
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Old 11-19-10, 05:53 AM   #9
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for a rear wheel, if the rim doesn't have a lot of difference between left and right spoke holes, you could try triplet lacing, 16 spokes on right side and 8 on left. In theory you end up with more even spoke tension but less lateral stiffness.
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Old 11-19-10, 11:03 AM   #10
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Could you explain the reasoning there?
if there's a lot of dishing on one side, then the spoke tension will be low on the opposite side, so you can take out half the spokes, 32h/2/2= 8 to bring up the non drive side to adequate tension.

When done with a road hub, it's about 100% drive side, 85% NDS spoke tension.
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Old 11-19-10, 11:09 AM   #11
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Is it possible to lace it to a 48h hub?
It is, but you'll need to lace it radially or use a few different lengths.

360/(48/2) = 15. So the spoke holes on a 48h hub will be 15deg apart on each side with a 7.5deg offset between the two sides.
360/(24/2) = 30. So the spoke holes on a 24h hub will be 30deg apart on each side with a 15deg offset between the two sides.

What will happen is that ONE side of a 48h hub will match up perfectly, BUT the opposite side will be be off by 7.5deg and give you all sorts of headaches.
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