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

Can I replace a 14 g spoke with a 15g?

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.

Can I replace a 14 g spoke with a 15g?

Old 12-06-11, 12:01 PM
  #1  
Senior Member
Thread Starter
 
Join Date: Apr 2010
Location: New York City
Posts: 812
Liked 6 Times in 5 Posts
Can I replace a 14 g spoke with a 15g?

Broke my spoke and want to fix it quick.I have a 15g spoke that fits.What's the down side to replacing it with the thinner spoke if tensioned and trued properly?Thanks in advance for your input.
trek330 is offline  
Old 12-06-11, 12:41 PM
  #2  
Senior Member
 
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 39,146

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

Liked 2,962 Times in 1,642 Posts
It's less than ideal but will work in a pinch. The only real problem is that the 15g spoke has only about 80% of the cross section of the 14g spoke, so at the same tension it'll be strained 25% more. Not much of a problem on the left flange, but could be on the right.

I'd go ahead and do it as a quick fix, do a quick true, then get a correct replacement and do the job right at my earliest convenience.
__________________
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 12-06-11, 01:19 PM
  #3  
Senior Member
 
Drew Eckhardt's Avatar
 
Join Date: Apr 2010
Location: Mountain View, CA USA and Golden, CO USA
Posts: 6,341

Bikes: 97 Litespeed, 50-39-30x13-26 10 cogs, Campagnolo Ultrashift, retroreflective rims on SON28/PowerTap hubs

Liked 326 Times in 226 Posts
Originally Posted by trek330
Broke my spoke and want to fix it quick.I have a 15g spoke that fits.What's the down side to replacing it with the thinner spoke if tensioned and trued properly?Thanks in advance for your input.
The large hub-flange holes which make life easy for lacing machines may not properly support the 15g elbow thus resulting in breakage until you replace it with one having a 14g elbow.

It'll also take a 15g nipple.

FWIW, with enough spokes (as a retro-grouch owning only 32 and 36 spoke wheels I couldn't tell you how many less than 32 you could get away with) you can get the wheel true enough to run with normal brake shoe clearances with one spoke missing.
Drew Eckhardt is offline  
Old 12-06-11, 01:57 PM
  #4  
Banned
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Posts: 43,598

Bikes: 8

Liked 1,360 Times in 866 Posts
Any port, in a storm, is a good place..

have a set of all 15 gage spoked wheels , 72 of them.
has worked for decades.. though the bike is ridden less as I get Older.
fietsbob is offline  
Old 12-06-11, 05:38 PM
  #5  
Bianchi Goddess
 
Bianchigirll's Avatar
 
Join Date: Apr 2009
Location: Shady Pines Retirement Fort Wayne, In
Posts: 28,029

Bikes: Too many to list here check my signature.

Liked 3,124 Times in 1,591 Posts
are both spokes straight guage? I could be wrong but you have to change the nipple too right?
__________________
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 12-07-11, 01:10 AM
  #6  
Senior Member
 
Join Date: Oct 2011
Location: SF Bay Area
Posts: 428

Bikes: 2003 Lemond Zurich; 1987 Schwinn Tempo; 1968 PX10; 1978 PX10LE, Peugeot Course; A-D Vent Noir

Likes: 0
Liked 1 Time in 1 Post
Though it's not ideal to mix spoke gauges, the main issue will be spoke tension. Measure this with a tensiometer.
neurocop is offline  
Old 12-07-11, 08:26 AM
  #7  
Senior Member
 
Join Date: Dec 2010
Location: northern Deep South
Posts: 9,006

Bikes: Fuji Touring, Novara Randonee

Liked 2,010 Times in 1,257 Posts
Mechanically it'll be fine. I'd say the biggest issue is likely to be trying to keep the wheel tensioned properly in the future. You can remember the first one while you're building and truing, but a year from now, you may need to re-true the wheel and you'll forget.

Which spoke needs to be touched? Pluck them. Plonk, plonk, plonk, PLINK! That one is too tight! Loosen it, and now the true is way off. Loosen the ones around it. Now there's a hop in the wheel. 45 minutes into the job, you'll remember there's this one that's a different gauge. Fix that hop, and you're back to finding the other loose one. What could have been a 5 minute job now takes an hour.
pdlamb is offline  
Old 12-07-11, 09:00 AM
  #8  
Senior Member
Thread Starter
 
Join Date: Apr 2010
Location: New York City
Posts: 812
Liked 6 Times in 5 Posts
Originally Posted by pdlamb
Mechanically it'll be fine. I'd say the biggest issue is likely to be trying to keep the wheel tensioned properly in the future. You can remember the first one while you're building and truing, but a year from now, you may need to re-true the wheel and you'll forget.

Which spoke needs to be touched? Pluck them. Plonk, plonk, plonk, PLINK! That one is too tight! Loosen it, and now the true is way off. Loosen the ones around it. Now there's a hop in the wheel. 45 minutes into the job, you'll remember there's this one that's a different gauge. Fix that hop, and you're back to finding the other loose one. What could have been a 5 minute job now takes an hour.
Nothing takes 5 minutes with me!!!Anyhow I have a tension gauge so that makes things alot easier.Speaking of which i just changed the spoke ( with the 15g) and trued and dished and I was amazed to see the tension all around was about perfect all around!!From 24.5 to 25.5 but closer to 25 all around on the tension scale!!Never have I been so accurate!!The 15g was about 21 which works out to a little less tension but that's fine.Wish me luck with no further breaks!!
trek330 is offline  
Old 12-07-11, 09:01 AM
  #9  
Senior Member
Thread Starter
 
Join Date: Apr 2010
Location: New York City
Posts: 812
Liked 6 Times in 5 Posts
Originally Posted by Bianchigirll
are both spokes straight guage? I could be wrong but you have to change the nipple too right?
Yes both spokes are straight gauge.And of course the nipple match the size.
trek330 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
bikemig
Bicycle Mechanics
8
09-06-19 08:25 AM
markwesti
General Cycling Discussion
22
03-09-17 08:24 PM
yannisg
Bicycle Mechanics
5
01-11-17 01:13 PM
PatrickGSR94
Bicycle Mechanics
13
09-23-16 10:56 PM
NealH
Bicycle Mechanics
8
09-01-10 06:48 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 - Your Privacy Choices -

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