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-   -   3/32 or 1/8 and why. (https://www.bikeforums.net/singlespeed-fixed-gear/948896-3-32-1-8-why.html)

GENESTARWIND 05-19-14 04:56 AM

3/32 or 1/8 and why.
 
What size chain do you run and why.

Do you think there are benefits to one or another?

I run 3/32. From what I've read a 1/8 is only wider and I'm not sure that's an advantage.
I see more options for chainrings being one though for ss/fg.

Go

RoadTire 05-19-14 05:01 AM


Originally Posted by GENESTARWIND (Post 16771268)
Go

Go where?

bmontgomery87 05-19-14 05:23 AM

i run 1/8 because thats what came on the bike and it seems like i have more options.

I'm also not a weight weenie and would prefer any durability benefits over saving a few ounces.

TejanoTrackie 05-19-14 07:00 AM

The advantage with a 1/8" chain is that it will work with 1/8" or 3/32" cogs/chainrings, but a 3/32" chain will ONLY work with 3/32" cogs/chainrings.

IAmSam 05-19-14 07:19 AM


Originally Posted by TejanoTrackie (Post 16771430)
The advantage with a 1/8" chain is that it will work with 1/8" or 3/32" cogs/chainrings, but a 3/32" chain will ONLY work with 3/32" cogs/chainrings.

The logical extension of that statement is that 3/32" cogs & rings work with either chain size while 1/8" parts require 1/8" chain ;)

Jared. 05-19-14 08:17 AM


There are probably a couple of threads on this already.

rms13 05-19-14 08:25 AM

My cog and chainring are 1/8 so I run a 1/8 chain

bowzette 05-19-14 10:08 AM

1. I've only been riding fixed a couple of years
2. I asked Scrod and Richard (ownes Wabi) the advantages/disadvantages of 3/32 v 1/8. They both recommended using 3/32 which I ignored because what could they know about fixed geard bikes.
3. I had the hots for a Sugino crank and Izume track chain that cost more than my bike.
4. I didn't want a chain designed to fall off a cog-othewise known as "shifting".
5. I'm happy 'cause what do Scrod and Richard know about fixed gear bikes.
6. Scrod's happy 'cause i've bought a bunch of EAI cogs.

hairnet 05-19-14 10:10 AM

I have used both on the road and mountain bike. No difference. chain are hard

SquidPuppet 05-19-14 10:30 AM

3/32nds for me.

Skinny is sexy. Plus, I'm a thousand times faster because they are lighter. :p

DiabloScott 05-19-14 11:29 AM


Originally Posted by GENESTARWIND (Post 16771268)
From what I've read a 1/8 is only wider
Go

If you run wider chains on narrower gears, you can have perfect chainline with less than perfect alignment of chainwheel and cog :thumb:

Jaytron 05-19-14 11:52 AM

1/8 because race biek

GhostSS 05-19-14 12:22 PM

1/8" on my commuter, 3/32" on my Leader 725 and Switch. Mostly dictated by the components I bought for them and wanting to match tolerances. I think durability is negligible between the two if it's just for recreational rides or urban commuting.

My Switch frame is 'sorta' a weight weenie build and 3/32" chain is lighter by a fair number of grams (by weenie standards).

TMonk 05-19-14 05:54 PM

3/32 road fixed gear
1/8 track bike

dont ask me why because i dont really think it makes a difference. yes i do know of some endurance track riders that actually use 3/32 in races

Huffandstuff 05-19-14 07:36 PM


Originally Posted by DiabloScott (Post 16772271)
If you run wider chains on narrower gears, you can have perfect chainline with less than perfect alignment of chainwheel and cog :thumb:

Exact reason I run 1/8 on my conversion and it's dead silent.

stryper 05-19-14 08:48 PM

11/128 chain. dingle cog

A3toxx 05-22-14 09:15 AM

1/8 because pretty chains and POWA.

thermalattorney 05-22-14 06:07 PM

When it came time to replace my worn out drivetrain I switched to 3/32". I saved 90g on the chain and 20g on the chainring for a grand total of $0. Haven't looked back.

No one here is strong enough to need an 1/8" chain. Remember that DA is available in 3/32" and all road racing is done on 3/32" chains. The only upside to a 1/8" chain in my eyes is the KMC master link, which makes it super easy to pop the chain off for a quick cleaning.

Scrodzilla 05-22-14 06:17 PM

That's all well and good but a lot of track chainrings are only available in 1/8".

hairnet 05-22-14 07:01 PM

problem solved

http://www.micro-machine-shop.com/bench_grinder.jpg

SquidPuppet 05-23-14 11:13 AM


Originally Posted by thermalattorney (Post 16783337)
The only upside to a 1/8" chain in my eyes is the KMC master link, which makes it super easy to pop the chain off for a quick cleaning.

3/32nds KMCs have a master link as well. :)

LesterOfPuppets 05-23-14 01:26 PM

1/8" on my fixed gear and coaster brake bikes.

Just cuz all the other bikes have 3/32"

I just use $8 KMC or Jeri, I ferget, chain on the coaster, cuz I'm cheap bastard.

LesterOfPuppets 05-23-14 01:28 PM


Originally Posted by SquidPuppet (Post 16785248)
3/32nds KMCs have a master link as well. :)

I thought all the 3/32 ones had quik-link, or whatever they call it, not master link.

http://www.racingplanetusa.com/image...e=en&shop_ID=1

SquidPuppet 05-23-14 03:28 PM


Originally Posted by LesterOfPuppets (Post 16785690)
I thought all the 3/32 ones had quik-link, or whatever they call it, not master link.

http://www.racingplanetusa.com/image...e=en&shop_ID=1

The Z610HX uses a good old fashioned master link like in your pic, same as my Schwinn StingRay did 40+ years ago. It's cheap too. :)

Maybe they snazzy hollow plate jobbers use the missing link.

Oh, and the 3/32nds fits Shimano coasters too. I don't know about other brand CBs though.

Cute Boy Horse 05-23-14 05:35 PM


Originally Posted by thermalattorney (Post 16783337)
No one here is strong enough to need an 1/8" chain. Remember that DA is available in 3/32" and all road racing is done on 3/32" chains. The only upside to a 1/8" chain in my eyes is the KMC master link, which makes it super easy to pop the chain off for a quick cleaning.

1/8" could never be stronger anyway, the plate thickness isn't wider.

I run a 1/8" chain because I don't care.


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