Wheelbuilding: skipping holes?
01-29-08, 02:47 PM
#1
King of the molehills
Thread Starter
Join Date: May 2006
Location: Detroit 'burbs, east side.
Posts: 1,192
Bikes: '04 Giant OCR2, DIY light tourer built on on Scattante cross frame, '87 Schwinn World Sport F/G conversion, '85 Schwinn Super Le Tour
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked 0 Times
in
0 Posts
Wheelbuilding: skipping holes?
Specifically, 32 hole hubs and 28 hole rims. (Hey, like you never had a brain fart. 
) What's your verdict? I'm kind of new at building.
A) Tacky, but mechanically OK.
B) Mechanically iffy -- may need to true often or something.
C) For the love of God, man, DON'T DO IT!!
If feasible, how? Just point me to a thread or resource if that'll do. I do not see a mention in any of my materials.
(Answer's probably buried somewhere in Sheldon's site...)
) What's your verdict? I'm kind of new at building.A) Tacky, but mechanically OK.
B) Mechanically iffy -- may need to true often or something.
C) For the love of God, man, DON'T DO IT!!
If feasible, how? Just point me to a thread or resource if that'll do. I do not see a mention in any of my materials.
(Answer's probably buried somewhere in Sheldon's site...)
01-29-08, 02:57 PM
#2
Senior Member
Join Date: Feb 2005
Location: Oklahoma
Posts: 9,438
Bikes: Trek 5500, Colnago C-50
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Likes: 0
Liked 7 Times
in
6 Posts
I really think the best thing for you to do is sell or trade off the parts you don't want and get the right parts. Hubs and rims need to match. Of course you could do 32 spokes on the rear wheel and 28 on the front.
Al
Al
01-29-08, 02:59 PM
#3
Hip to the Game.
Join Date: Jul 2007
Location: Cracklanta, GA
Posts: 408
Bikes: Kona Lava Dome, Kapu 853
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
That setup doesn't sound like it would be reasonable, just based on the difference in holes. You need a hole difference that is wholly divisible by the total in both the rim and the hub (i.e. 24/36, 18/36, etc.)
For your setup, you need to skip 4 holes over 32, or every 8th on the rim. Will the lacing pattern allow this feasibly? ONce you start crossing spokes, it gets tricky fast.
I spent about an hour going through some spacing options in AutoCAD for an older 20-hole hub I have, and it is a PITA if you're not lacing the wheel radially.
All that said, I have seen some wheels that skip rim holes. I can't attest to their durability, but if you get the tension right, you should be okay, as long as you're not 250lbs riding on a 16-hole rear wheel and such.
For your setup, you need to skip 4 holes over 32, or every 8th on the rim. Will the lacing pattern allow this feasibly? ONce you start crossing spokes, it gets tricky fast.
I spent about an hour going through some spacing options in AutoCAD for an older 20-hole hub I have, and it is a PITA if you're not lacing the wheel radially.
All that said, I have seen some wheels that skip rim holes. I can't attest to their durability, but if you get the tension right, you should be okay, as long as you're not 250lbs riding on a 16-hole rear wheel and such.
01-29-08, 04:21 PM
#4
King of the molehills
Thread Starter
Join Date: May 2006
Location: Detroit 'burbs, east side.
Posts: 1,192
Bikes: '04 Giant OCR2, DIY light tourer built on on Scattante cross frame, '87 Schwinn World Sport F/G conversion, '85 Schwinn Super Le Tour
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Liked 0 Times
in
0 Posts
Alrighty then: I'll look for matching parts! I can always use what I have now for some future project. Thanks.
(See, what happened is the 700c rims I have for another bike are 32 holes and I got confused... )
(See, what happened is the 700c rims I have for another bike are 32 holes and I got confused...
)
