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Spoke lengths for 26x1-3/8 wheels (590)

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Spoke lengths for 26x1-3/8 wheels (590)

Old 06-22-19, 01:25 PM
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kroozer
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Spoke lengths for 26x1-3/8 wheels (590)

What would be the approximate spoke lengths for these 26x1-3/8 (590mm) wheels? 3x or 4x crossing.
Sun CR-18 rims.
Sturmey Archer AW rear hub.
Small-flange front hub.
I'm having some difficulty figuring this out, and thought maybe someone could just measure theirs directly.
Or if you could recommend a good spoke calculating website that's not too complicated.
Thanks.
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Old 06-22-19, 06:54 PM
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I use Spocalc, from Sheldon Brown's site on Wheel Building: https://www.sheldonbrown.com/wheelbuild.html and https://www.sheldonbrown.com/rinard/spocalc.xls

Are you using 36/36 rims, or 32/40 rims? I built up a 40 hole S5 hub (same size as an AW) in a CR18, 4-cross, and I believe I used 280mm spokes. 3 cross would be 270mm. I used a Dynohub for the front, so I'm afraid I can't help you there.

Last edited by gna; 06-22-19 at 07:03 PM.
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Old 06-22-19, 08:56 PM
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I also use spocalc. I do also have a Raleigh spare parts catalog from the 1950s, I think, and it list spoke lengths for various rim and hub setups. For a rear wheel with an S-A hub and a Raleigh Patent 26 1 3/8” rim laced 4 cross, spoke length is 11 3/32”. For a “standard” front hub with that rim, spoke length listed is 11 7/32”. It doesn’t list the drilling for these rims, but I assume it’s standard 40-hole rear/32-hole front.
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Old 06-29-19, 02:12 PM
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Originally Posted by gna View Post
I use Spocalc, from Sheldon Brown's site on Wheel Building: https://www.sheldonbrown.com/wheelbuild.html and https://www.sheldonbrown.com/rinard/spocalc.xls

Are you using 36/36 rims, or 32/40 rims? I built up a 40 hole S5 hub (same size as an AW) in a CR18, 4-cross, and I believe I used 280mm spokes. 3 cross would be 270mm. I used a Dynohub for the front, so I'm afraid I can't help you there.
Update: I found my spoke order. 578 ERD, I used 281mm spokes--Spocalc gave me a value of 280.7mm. 3 cross would be 271.
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Old 06-29-19, 03:24 PM
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When I click on Spocalc it does not seem to be active with the calculation.
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Old 06-29-19, 04:51 PM
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Timely info! I need to replace a front wheel spoke on my Raleigh Sports.
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Old 06-29-19, 09:49 PM
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OK, I found an old Raleigh front hub. I measured it and entered the values in Spocalc. I got 284mm for front spokes, 3 cross, 32 hole. The 11 7/32 spokes mentioned above give a value of 285mm. Either one would probably work.
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