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  1. #1
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    1/8" vs. 3/32" for fixed applications

    What do you think is better for a fixed gear, 1/8" chains or 3/32", in terms of noise and function?

  2. #2
    Run What 'Ya Brung bonechilling's Avatar
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    3/32" is lighter, cheaper and more readily available (although BMX chains are 1/8", and are pretty cheap and common). 1/8" is a relic from a by-gone era that still happens to be a standard for track racing.

    Go with 3/32".
    Last edited by bonechilling; 03-07-08 at 08:11 PM.
    Quote Originally Posted by doofo View Post
    the main cause of fit problems is riding your bike

    you should have just stopped riding so you could focus on color coordination

  3. #3
    Look at all these buttons EivlEvo's Avatar
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    Eh... I say neither.

    If you have all 1/8" components then 1/8" is better. If you have all 3/32" components then 3/32" is better.

    I mean... I suppose 1/8" is "stronger" but I'd be surprised if that many people were actually busting properly setup 3/32" chains.

  4. #4
    Run What 'Ya Brung bonechilling's Avatar
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    Quote Originally Posted by EivlEvo View Post
    Eh... I say neither.
    Neither? So how do you pedal?
    Quote Originally Posted by doofo View Post
    the main cause of fit problems is riding your bike

    you should have just stopped riding so you could focus on color coordination

  5. #5
    reedreeder
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    i have a 3/32 on my conversion, only because i bought a cog with hopes of using my old cranks, chainring, and chain. It turned out to not matter, since i ended up replacing everything anyway, but it works just fine.

  6. #6
    cab horn
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    Quote Originally Posted by danimal4lovin View Post
    What do you think is better for a fixed gear, 1/8" chains or 3/32", in terms of noise and function?
    Noise wise, go 3/32. There's almost no reason to go 1/8 except for longevity of drivetrain. It also weighs more. If you have a track crank you might not even have a choice.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  7. #7
    It's an old photo Boss Moniker's Avatar
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    Quote Originally Posted by dutret View Post
    Just because I'm not angry anymore doesn't mean I don't think bossmoniker and every other hipster **** I see riding around on aerowheels isn't a piece of **** thats only use is to be an easy target for ridicule.

  8. #8
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    has anyone ever heard of either size chain breaking or failing on a fixed?

  9. #9
    <3s bikes Re-Cycle's Avatar
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    Haaaaaahahah Boss
    A wild man once explained to me how bicycles came from sailboats.

  10. #10
    hello roadfix's Avatar
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    I run 1/8 chain only because I'm always running a mix of 3/32 & 1/8 cogs and rings on different bikes.

  11. #11
    Run What 'Ya Brung bonechilling's Avatar
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    Quote Originally Posted by reptar douglass View Post
    has anyone ever heard of either size chain breaking or failing on a fixed?
    Chains break or fail all the time, but it being fixed or not is irrelevant.
    Quote Originally Posted by doofo View Post
    the main cause of fit problems is riding your bike

    you should have just stopped riding so you could focus on color coordination

  12. #12
    Senior Member mihlbach's Avatar
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    Quote Originally Posted by Boss Moniker View Post
    Can anyone tell me what bb for my sugino 75 cranks?

  13. #13
    Look at all these buttons EivlEvo's Avatar
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    Quote Originally Posted by bonechilling View Post
    Neither? So how do you pedal?
    HAHAHAHA! I meant neither is better.

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    Quote Originally Posted by bonechilling View Post
    Chains break or fail all the time, but it being fixed or not is irrelevant.
    it serves relevant when braking is involved.
    i guess to be more specific i'm just curious if anyone has rode fixed, had a chain break on them, and now swears by hand brakes.

  15. #15
    Look at all these buttons EivlEvo's Avatar
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    Quote Originally Posted by reptar douglass View Post
    it serves relevant when braking is involved.
    i guess to be more specific i'm just curious if anyone has rode fixed, had a chain break on them, and now swears by hand brakes.
    I haven't... but Im trying REALLY hard to get that to happen.

  16. #16
    cab horn
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    Quote Originally Posted by reptar douglass View Post
    it serves relevant when braking is involved.
    i guess to be more specific i'm just curious if anyone has rode fixed, had a chain break on them, and now swears by hand brakes.
    Way to miss the point. He means that whether or not a chain is being used in a geared application or a no-gear application has no bearing on chain failure. As usual chain failure is caused by several things.

    1) installation error
    2) extreme wear
    3) external damage
    4) manufacturing defect

    1 and 2 is by far the most comomn.

    If you suck at wrenching or really don't want to take the chance then run a brake, or be 100% vigilant everywhere, all the time.
    Last edited by operator; 03-07-08 at 07:14 PM.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  17. #17
    Senior Member balonya's Avatar
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    Quote Originally Posted by operator View Post
    Way to miss the point. He means that whether or not a chain is being used in a geared application or a no-gear application has no bearing on chain failure. As usual chain failure is caused by several things.

    1) installation error
    2) extreme wear
    3) external damage
    4) manufacturing defect

    1 and 2 is by far the most comomn.

    If you suck at wrenching or really don't want to take the chance then run a brake, or be 100% vigilant everywhere, all the time.
    I had a 3 week old chain break (dont remember brand or size) going down a long steep hill in traffic! I was efing shocked, I chalk it up to number 4 ^. I run a break so there was no panic.

  18. #18
    F'ing A shasta's Avatar
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    I use 1/8 because 1/8 single speed chains can be had at any bike shop for 10 bucks. Also, I can use either the 1/8 or 3/32 cogs and chain rings that I have been accumulating. I'm not sure if you can use a 3/32 chain with a 1/8 cog.
    ride for fun

  19. #19
    Run What 'Ya Brung bonechilling's Avatar
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    Quote Originally Posted by shasta View Post
    I'm not sure if you can use a 3/32 chain with a 1/8 cog.
    You can't. It's smart to buy 3/32" components, because they're cheap and common, and run them with a 1/8" BMX chains, for the same reason. Also, 3/32" components with a 1/8" chain allows you a little more wiggle room if you have an imperfect chainline.
    Quote Originally Posted by doofo View Post
    the main cause of fit problems is riding your bike

    you should have just stopped riding so you could focus on color coordination

  20. #20
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    1/8 chain, whatever ring/cog.

  21. #21
    cab horn
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    Quote Originally Posted by shasta View Post
    I use 1/8 because 1/8 single speed chains can be had at any bike shop for 10 bucks.
    3/32 chains can also be had at any bike shop for $10.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  22. #22
    F'ing A shasta's Avatar
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    Its sort of a pain in the ass to get a 3/32 single speed chain and I have never liked the idea that the 8 speed chains are designed to derail.
    ride for fun

  23. #23
    cab horn
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    Quote Originally Posted by shasta View Post
    Its sort of a pain in the ass to get a 3/32 single speed chain and I have never liked the idea that the 8 speed chains are designed to derail.
    Whoa way to be misinformed. A 3/32 single speed chain is functionally no different than ones labelled for 7, 8, 9 or 10 speed. Road chains that are designed to be shifted only differ in that they have greater strength when they are flexed sideways due to shifting loads - this makes it stronger not weaker. And it does not mean that they "derail" more because of this, which is what I think your concern is.

    There's no reason to go and specifically look for a "single-speed" specific chain when 7/8 speed "road" chains do the same job but better and are widely available.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  24. #24
    Run What 'Ya Brung bonechilling's Avatar
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    Quote Originally Posted by operator View Post
    3/32 chains can also be had at any bike shop for $10.
    Not in my experience. They're usually like $20+, compared to $7-$10 for a KMC BMX chain.
    Quote Originally Posted by doofo View Post
    the main cause of fit problems is riding your bike

    you should have just stopped riding so you could focus on color coordination

  25. #25
    cab horn
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    Quote Originally Posted by bonechilling View Post
    Not in my experience. They're usually like $20+, compared to $7-$10 for a KMC BMX chain.
    Time to frequent better, well stocked shops.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

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