Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

User Tag List

Reply
 
Thread Tools Search this Thread
Old 10-17-08, 02:08 PM   #1
i saved latin
Senior Member
Thread Starter
 
Join Date: Feb 2008
Bikes:
Posts: 101
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
3/32 chain and cog 1/8 crank?

i went and got a 17t cog yesterday but they only had 3/32 and so the lbs dude was like you can run a 3/32 cog and buy a 3/32 chain and you will be fine even though the crank is 1/8. he said it will work fine as long as i dont use a smaller chain.

has anyone else ever ran different sized drivetrain parts? how did it work out?

is this legit? like is it gonna some how kill on me? i saw this dudes post and he said he had wrong cog and it broke and he got messed up.
i saved latin is offline   Reply With Quote
Old 10-17-08, 02:10 PM   #2
thirstmode
Newb
 
Join Date: Oct 2008
Bikes:
Posts: 9
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
LBS dude fail.

3/32 chain will not work if your chainring is 1/8. But your chainring might actually be 3/32 inwhich case you're OK.
thirstmode is offline   Reply With Quote
Old 10-17-08, 02:11 PM   #3
Cynikal
Team Beer
 
Cynikal's Avatar
 
Join Date: Apr 2004
Location: Sacramento CA
Bikes: Too Many
Posts: 5,920
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Your LBS is wrong. Go back and have him show you how to use a 3/32nd chain on a 1/8 chainring.

Your can run 1/8th chain on the 3/32 cogs and chainrings if you need to but not the other way around.
Cynikal is offline   Reply With Quote
Old 10-17-08, 02:21 PM   #4
elTwitcho
Live without dead time
 
Join Date: Jun 2008
Location: Toronto
Bikes:
Posts: 2,137
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by i saved latin View Post
i went and got a 17t cog yesterday but they only had 3/32 and so the lbs dude was like you can run a 3/32 cog and buy a 3/32 chain and you will be fine even though the crank is 1/8. he said it will work fine as long as i dont use a smaller chain.

has anyone else ever ran different sized drivetrain parts? how did it work out?

is this legit? like is it gonna some how kill on me? i saw this dudes post and he said he had wrong cog and it broke and he got messed up.
Considering 3/32 is smaller than 1/8...
elTwitcho is offline   Reply With Quote
Old 10-17-08, 02:31 PM   #5
i saved latin
Senior Member
Thread Starter
 
Join Date: Feb 2008
Bikes:
Posts: 101
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
maybe i got it it confused. he put it all on.

okay i just checked the box and i got a 1/8" chain and cog and i got a 3/32 crank.
the crank is the stock crank on the kilo tt.
now that thats cleared up and i have a 1/8 chain and cog and a 3/32 crank will i be okay?
and will it still work correctly? or is there anything i should look out for?
i saved latin is offline   Reply With Quote
Old 10-17-08, 02:34 PM   #6
i saved latin
Senior Member
Thread Starter
 
Join Date: Feb 2008
Bikes:
Posts: 101
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
thank you so much.
im sorry i got the numbers switched around.
after reading about that one dudes cog failing i got paranoid.
plus its always nice to hear other opinions on situations
i saved latin is offline   Reply With Quote
Old 10-17-08, 02:36 PM   #7
peabodypride
No plan.
 
peabodypride's Avatar
 
Join Date: May 2007
Location: PA
Bikes:
Posts: 2,744
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
free thread!
peabodypride is offline   Reply With Quote
Old 10-17-08, 03:16 PM   #8
malpag3
takin' it to the streets
 
malpag3's Avatar
 
Join Date: Aug 2007
Location: Denv-arrrgghhh
Bikes: 1999 Kona Kapu; late 70's/early 80's Araya road bike/commuter bike.
Posts: 1,093
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Yeah, fail.

I run a 1/8" chain and cog that works just fine with a 3/32" chainring.
malpag3 is offline   Reply With Quote
Old 10-17-08, 03:42 PM   #9
clink83
Senior Member
 
Join Date: Aug 2008
Bikes:
Posts: 1,025
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by malpag3 View Post
Yeah, fail.

I run a 1/8" chain and cog that works just fine with a 3/32" chainring.
I run a 3/32 chain with a 1/8 42t front and a 3/32 Dingleberry rear.

3/32 vs 4/32 isn't really a significant change in width. I think that a 3/32 5/7/8 speed chain would work ok, but a 9/10/11 might not.

Last edited by clink83; 10-17-08 at 03:48 PM.
clink83 is offline   Reply With Quote
Old 10-17-08, 06:06 PM   #10
operator
cab horn
 
Join Date: Jun 2004
Location: Toronto
Bikes: 1987 Bianchi Campione
Posts: 28,306
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by clink83 View Post
I run a 3/32 chain with a 1/8 42t front and a 3/32 Dingleberry rear.
.
No, you don't.

There is NO WAY a 3/32 chain will work on ANY 1/8 chainring or cog.
operator is offline   Reply With Quote
Old 10-17-08, 06:08 PM   #11
operator
cab horn
 
Join Date: Jun 2004
Location: Toronto
Bikes: 1987 Bianchi Campione
Posts: 28,306
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by clink83 View Post
3/32 vs 4/32 isn't really a significant change in width. I think that a 3/32 5/7/8 speed chain would work ok, but a 9/10/11 might not.
Wrong again. All 3/32 derailleur chains, those marked 7,8,9,10 speed will work with 3/32 cogs/chainrings. The inner diameter, where it actually matters does not change as you go up in speed. Only the outside.
operator is offline   Reply With Quote
Old 10-20-08, 09:58 AM   #12
clink83
Senior Member
 
Join Date: Aug 2008
Bikes:
Posts: 1,025
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by operator View Post
Wrong again. All 3/32 derailleur chains, those marked 7,8,9,10 speed will work with 3/32 cogs/chainrings. The inner diameter, where it actually matters does not change as you go up in speed. Only the outside.
Well, my bike came with a 1/8in chain, 1/8 freewheel and chainring, and all I did was switch out the rims and put on a 3/32 chain and cog. It worked fine, aside from making a small amount of noise. I checked the chain when I removed it and it had very little sign of any wear. Now, it is possible like someone else said above that it came stock with a 3/32 ring and 1/8in chain, in which case I'm mistaken.

What I was saying about the 3/32 chain is you can probably get away with running 3/32 chain made for old 5/6 speeds since they would have less prescise tolerances vs the newer 8/9/10 speed indexed stuff thats going to have closer tolerances due to indexed shifting. Thats what I did at least.

Last edited by clink83; 10-20-08 at 10:05 AM.
clink83 is offline   Reply With Quote
Old 10-20-08, 10:00 AM   #13
middy
Team Smartass
 
middy's Avatar
 
Join Date: Jul 2008
Location: Tejas, brah!
Bikes:
Posts: 461
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by clink83 View Post
Well, my bike came with a 1/8in chain, 1/8 freewheel and chainring, and all I did was switch out the rims and put on a 3/32 chain and cog. It worked fine, aside from making a small amount of noise. I checked the chain when I removed it and it had very little sign of any wear.

What I was saying about the 3/32 chain is you can probably get away with running 3/32 chain made for old 5/6 speeds since they would have less prescise tolerances vs the newer 8/9/10 speed indexed stuff thats going to have closer tolerances due to indexed shifting. Thats what I did at least.
Your chainring is 3/32.
middy is offline   Reply With Quote
Old 10-20-08, 10:14 AM   #14
clink83
Senior Member
 
Join Date: Aug 2008
Bikes:
Posts: 1,025
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
In which case ignore what I just said
clink83 is offline   Reply With Quote
Old 10-20-08, 07:41 PM   #15
triplesixer
666
 
triplesixer's Avatar
 
Join Date: Aug 2008
Location: Minneapolis
Bikes: Raleigh 29er, IRO Angus frameset- random components, Giant Bowery, Raleigh Rush Hour frameset-future build
Posts: 656
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Your bike will make terrible noise if you use 1/8 chain and anything else 3/32.
triplesixer is offline   Reply With Quote
Old 10-20-08, 07:53 PM   #16
SAGISI
Junior Member
 
Join Date: Oct 2008
Bikes:
Posts: 10
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Where are you from? Yesterday i bought a 17t cog and they gave me a 1/8th when i needed a 3/32. I got to go back to santa cruz to exchange it. Wanna trade if you live nearby? Im from San Jose, CA
SAGISI is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -6. The time now is 10:41 AM.