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

question about cogs

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.

question about cogs

Old 06-16-13, 12:43 PM
  #1  
novahistics
Junior Member
Thread Starter
 
Join Date: Jun 2013
Posts: 13
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
question about cogs

how much trouble will i run into if you use a 3/32 cog on my fixie with a 1/8 chain?
novahistics is offline  
Old 06-16-13, 01:10 PM
  #2  
FBinNY 
Senior Member
 
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 37,185

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: 132 Post(s)
Tagged: 1 Thread(s)
Quoted: 5031 Post(s)
Liked 1,163 Times in 676 Posts
Originally Posted by novahistics
how much trouble will i run into if you use a 3/32 cog on my fixie with a 1/8 chain?
None. It's done all the time, though usually with a 3/32" chainring and 1/8" rear sprocket. Presumably narrower sprockets will wear faster but it's not like you'll likely notice.
__________________
FB
Chain-L site

An ounce of diagnosis is worth a pound of cure.

“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

“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 06-16-13, 01:39 PM
  #3  
novahistics
Junior Member
Thread Starter
 
Join Date: Jun 2013
Posts: 13
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
actually, 3/32 chain ring and 1/8 rear cog is what im doin right now. i should have been more specific. if i instal the back cog i'll have 3/32 front and back with a 1/8 chain running on them. will that cause me any trouble?
novahistics is offline  
Old 06-16-13, 01:44 PM
  #4  
Airburst
Senior Member
 
Join Date: Oct 2009
Location: England, currently dividing my time between university in Guildford and home just outside Reading
Posts: 1,921

Bikes: Too many to list here!

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 4 Times in 2 Posts
Originally Posted by novahistics
will that cause me any trouble?
Again, no, I've run that setup with no issues.
Airburst is offline  
Old 06-16-13, 01:47 PM
  #5  
novahistics
Junior Member
Thread Starter
 
Join Date: Jun 2013
Posts: 13
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
sweet. thanks dude
novahistics is offline  
Old 06-16-13, 01:48 PM
  #6  
FBinNY 
Senior Member
 
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 37,185

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: 132 Post(s)
Tagged: 1 Thread(s)
Quoted: 5031 Post(s)
Liked 1,163 Times in 676 Posts
Originally Posted by novahistics
actually, 3/32 chain ring and 1/8 rear cog is what im doin right now. i should have been more specific. if i instal the back cog i'll have 3/32 front and back with a 1/8 chain running on them. will that cause me any trouble?
Still no issues, though whe it comes time to replace the chain, you might as well go to 3/32"
__________________
FB
Chain-L site

An ounce of diagnosis is worth a pound of cure.

“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin

“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 06-16-13, 01:53 PM
  #7  
novahistics
Junior Member
Thread Starter
 
Join Date: Jun 2013
Posts: 13
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by FBinNY
Still no issues, though whe it comes time to replace the chain, you might as well go to 3/32"
ya that was my plan
novahistics is offline  
Old 06-16-13, 02:19 PM
  #8  
sreten
Banned.
 
Join Date: Feb 2013
Location: Brighton UK
Posts: 1,662

Bikes: 20" Folder, Road Bike

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Hi,

Go with a new chain with a new rear cog, unless your chain is relatively new.
If you don't you'll just rapidly wear the rear cog to the same state as the chain.

rgds, sreten.
sreten is offline  
Old 06-16-13, 02:20 PM
  #9  
Airburst
Senior Member
 
Join Date: Oct 2009
Location: England, currently dividing my time between university in Guildford and home just outside Reading
Posts: 1,921

Bikes: Too many to list here!

Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 4 Times in 2 Posts
Originally Posted by novahistics
sweet. thanks dude
Dudette actually, but no problem, it's nice when we get an easy question on here!
Airburst is offline  
Old 06-16-13, 07:55 PM
  #10  
novahistics
Junior Member
Thread Starter
 
Join Date: Jun 2013
Posts: 13
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
Originally Posted by sreten
Hi,

Go with a new chain with a new rear cog, unless your chain is relatively new.
If you don't you'll just rapidly wear the rear cog to the same state as the chain.

rgds, sreten.
that I do know. thanks all the same though. it's a pretty knew chain so it should be all good. i had just bought a new chain and bottom bracket and after installing them at my homies place i was rummaging through his parts bin and found the cog. I was already planning on pickin up a 15 so i figured as long as it wont be an issue i might as well save myself a lil loot.

anyway thanks all. cheers.
novahistics is offline  
Old 06-16-13, 10:28 PM
  #11  
fietsbob
Banned
 
Join Date: Jun 2010
Location: NW,Oregon Coast
Posts: 43,599

Bikes: 8

Mentioned: 197 Post(s)
Tagged: 0 Thread(s)
Quoted: 7607 Post(s)
Liked 1,346 Times in 853 Posts
1/8" is 4/32" after all.. that 1/32" aint much ..

Full Bushing Chains are longer Wearing, in single speed drivetrains, but finding any in 3/32" these days, is rare.

Last edited by fietsbob; 06-16-13 at 10:31 PM.
fietsbob is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
mtalinm
Bicycle Mechanics
10
07-05-15 05:11 PM
Shinkers
Singlespeed & Fixed Gear
10
05-10-14 05:57 PM
75meters
Singlespeed & Fixed Gear
13
04-11-13 08:15 AM
KoolKeith
Singlespeed & Fixed Gear
6
03-23-12 06:13 PM
TallRider
Singlespeed & Fixed Gear
11
04-02-10 07:15 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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell or Share My Personal Information -

Copyright © 2023 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.