Go Back  Bike Forums > Bike Forums > Bicycle Mechanics
Reload this Page >

Lacing 32 hole rim to 36 hole hub

Notices
Bicycle Mechanics Broken bottom bracket? Tacoed wheel? If you're having problems with your bicycle, or just need help fixing a flat, drop in here for the latest on bicycle mechanics & bicycle maintenance.

Lacing 32 hole rim to 36 hole hub

Old 02-17-10, 04:07 PM
  #1  
Senior Member
Thread Starter
 
canopus's Avatar
 
Join Date: Mar 2009
Location: Kingwood, TX
Posts: 1,574

Bikes: Road, Touring, BMX, Cruisers...

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 135 Post(s)
Liked 173 Times in 111 Posts
Lacing 32 hole rim to 36 hole hub

Anyone here done this? Thought about doing it? Did it and didn't like? Tried it but couldn't get the spoke lengths worked out? Did it but the hub pulled apart?

Please save the "get the right rim or get the right hub posts"

Thanks
canopus is offline  
Old 02-17-10, 04:41 PM
  #2  
Over the hill
 
urbanknight's Avatar
 
Join Date: Mar 2006
Location: Los Angeles, CA
Posts: 24,406

Bikes: Giant Defy, Giant Revolt

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 1011 Post(s)
Liked 1,235 Times in 707 Posts
https://www.sheldonbrown.com/mismatch/
__________________
It's like riding a bicycle
urbanknight is offline  
Old 02-17-10, 04:47 PM
  #3  
Senior Member
Thread Starter
 
canopus's Avatar
 
Join Date: Mar 2009
Location: Kingwood, TX
Posts: 1,574

Bikes: Road, Touring, BMX, Cruisers...

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 135 Post(s)
Liked 173 Times in 111 Posts
read it. Thanks,
canopus is offline  
Old 02-17-10, 04:49 PM
  #4  
Senior Member
 
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 38,956

Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter

Mentioned: 141 Post(s)
Tagged: 1 Thread(s)
Quoted: 5910 Post(s)
Liked 2,779 Times in 1,551 Posts
The good news is that since you'll be using all the holes in the rim, there won't be any rim strength, or unsupported section issues. The bad news it that you'll go absolutely crazy figuring the pattern and spoke lengths.

It is doable, probably with no structural downside, I just can't imagine how it could be worth the effort.

BTW- if you decide to go ahead, it's critical that the hub not have countersunk spoke holes alternating inside/outside because you won't be able to stay true to the pattern.
__________________
FB
Chain-L site

An ounce of diagnosis is worth a pound of cure.

Just because I'm tired of arguing, doesn't mean you're right.

“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN

WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FBinNY is offline  
Old 02-17-10, 05:15 PM
  #5  
aka Tom Reingold
 
noglider's Avatar
 
Join Date: Jan 2009
Location: New York, NY, and High Falls, NY, USA
Posts: 40,583

Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem

Mentioned: 513 Post(s)
Tagged: 0 Thread(s)
Quoted: 7391 Post(s)
Liked 2,552 Times in 1,486 Posts
I had no idea this is possible. I'm still not convinced it's worth the effort, but it's still fascinating.
__________________
Tom Reingold, tom@noglider.com
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog

“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author

Please email me rather than PM'ing me. Thanks.
noglider is offline  
Old 02-17-10, 05:19 PM
  #6  
AEO
Senior Member
 
AEO's Avatar
 
Join Date: Jun 2007
Location: A Coffin Called Earth. or Toronto, ON
Posts: 12,257

Bikes: Bianchi, Miyata, Dahon, Rossin

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 5 Times in 5 Posts
I wouldn't do it, because according to my calculations, you need more than one spoke lengths to get it to work on an undished wheel.
It only works well when you have a jump of more than 4 holes. so 32h hub with 24h rim, 36h hub with 28h rim etc.

the math formula is here: https://www.sheldonbrown.com/rinard/36-24.htm
And I wrote this excel sheet based on the formula on the page.
Attached Files
File Type: zip
decimal calc.zip (11.0 KB, 12 views)
__________________
Food for thought: if you aren't dead by 2050, you and your entire family will be within a few years from starvation. Now that is a cruel gift to leave for your offspring. ;)
https://sanfrancisco.ibtimes.com/arti...ger-photos.htm
AEO is offline  
Old 02-17-10, 05:41 PM
  #7  
Bianchi Goddess
 
Bianchigirll's Avatar
 
Join Date: Apr 2009
Location: Shady Pines Retirement Fort Wayne, In
Posts: 27,928

Bikes: Too many to list here check my signature.

Mentioned: 194 Post(s)
Tagged: 2 Thread(s)
Quoted: 2955 Post(s)
Liked 3,007 Times in 1,532 Posts
I cant see that it would work. I had seen "Tri" front wheel with a 16' rim laced to a 32' rim.
__________________
One morning you wake up, the girl is gone, the bikes are gone, all that's left behind is a pair of old tires and a tube of tubular glue, all squeezed out"

Sugar "Kane" Kowalczyk
Bianchigirll is offline  
Old 02-17-10, 05:45 PM
  #8  
Collector of Useless Info
 
Join Date: Aug 2009
Posts: 1,404
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Likes: 0
Liked 2 Times in 2 Posts
Did 36 spokes on a 40 hole hub once- I had an old Sturmey-archer 3-speed hub I wanted to lace to a new rim, and I couldn't find any 20" 40-hole rims. I needed 9 different spoke lengths, but they were only 1 mm different. This was laced approximately 3-cross. You'll need 8 different spoke lengths if your wheel has no dish, and maybe as many as 10-12 different lengths if your wheel has dish (assuming a 1-2 mm variation due to dish and 1-2 mm difference in spoke length). It's hard to keep everything straight (like which hole goes with which spoke), but kinda rewarding in a perverse way. Good luck, and post pics when you're done.
cycle_maven is offline  
Old 02-18-10, 02:24 AM
  #9  
Senior Member
 
Join Date: Mar 2008
Posts: 8,688
Mentioned: 46 Post(s)
Tagged: 0 Thread(s)
Quoted: 1074 Post(s)
Liked 295 Times in 222 Posts
Originally Posted by canopus
Anyone here done this?
Yes, I've done it. Posted about it here too. Run a search and you should be able to dig it up. Should have a crude description about how I did it.

Originally Posted by canopus
...Thought about doing it?
That, and other oddbal laces. I did a fair amount of figuring before I set off, wasting time and spokes w/o any payback isn't my idea of fun.

Originally Posted by canopus
Did it and didn't like?
It's not such a big deal, if you have the patience and can accept getting a spoke length wrong here and there.
Getting it round, true and tensioned is quite time consuming as you really can't use the shortcuts of counting threads and turns particularly well.
I'd only consider doing it again if there is something really special about the parts I've collected.

Originally Posted by canopus
.. Tried it but couldn't get the spoke lengths worked out?
Wasn't too bad. I honestly don't remember if I had to replace any spokes, probably.
Bigger issue was finding someone who had the lengths I wanted in stock. Probably took visits to 4 stores.

Originally Posted by canopus
.. Did it but the hub pulled apart?
I used that wheel for 2500+ miles or so, until an obsolete and worn out cassette forced a rebuild.
The one spoke issue I had I attribute to the fact that I was using 3X on a high flange hub, which for the spokes with the greatest displacement from where they should have been resulted in a fairly nasty angle where the spoke left the nipple.
Didn't have much choice, if I wanted to buy the spokes piecemeal OTC I had to go with 3X. 2X would have required special order bulk packs.
dabac is offline  
Old 02-18-10, 08:17 AM
  #10  
Cat 6
 
Ex Pres's Avatar
 
Join Date: Dec 2007
Location: Mountain Brook, AL
Posts: 7,482
Mentioned: 27 Post(s)
Tagged: 0 Thread(s)
Quoted: 500 Post(s)
Liked 184 Times in 119 Posts
Once you get to lower spoke counts and skipping holes you can run into an issue. I tried a 20 hole hub with a 24 hole rim. I could get the wheel laterally true without a problem - but not even close radially. Hoppity, hoppity, hoppity, hop. With 4 skipped holes equally spaced, as I brought up spoke tension I was making a square.
__________________
72 Frejus (for sale), Holdsworth Record (for sale), special CNC & Gitane Interclub / 74 Italvega NR (for sale) / c80 French / 82 Raleigh Intl MkII f&f (for sale)/ 83 Trek 620 (for sale)/ 84 Bruce Gordon Chinook (for sale)/ 85 Ron Cooper / 87 Centurion IM MV (for sale) / 03 Casati Dardo / 08 BF IRO / 09 Dogma FPX / 09 Giant TCX0 / 10 Vassago Fisticuff








Ex Pres is offline  
Old 02-18-10, 08:36 AM
  #11  
Senior Member
 
Join Date: Mar 2008
Posts: 8,688
Mentioned: 46 Post(s)
Tagged: 0 Thread(s)
Quoted: 1074 Post(s)
Liked 295 Times in 222 Posts
Originally Posted by Bob Barker
... I tried a 20 hole hub with a 24 hole rim...
Excess holes in the rim is a far worse option than excess holes in the hub. I salute you for even trying.
Then again, on a really stiff, high-profile rim, I suppose that too would be possible.
dabac is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Abu Mahendra
Bicycle Mechanics
16
10-14-16 09:10 AM
Estuche
Bicycle Mechanics
24
07-09-14 12:27 PM
mrbubbles
Bicycle Mechanics
4
11-12-13 05:42 AM
TL179
Bicycle Mechanics
6
04-21-11 08:11 PM

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.