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  1. #1
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    Eighthinch cogs and cranks vs. Iro?

    I've lived off the search function for months and months, but finally have a question that doesn't seem to have been asked before.

    I'm building up an Iro Mark V and wanted to know how Eighthinch 3/32" drivetrain products compare with Iro stuff. The prices are pretty close, but Wheel&Sprocket offers free shipping off eBay. Plus those Eighthinch cogs look pretty good.

    Worth a try? Or just stick with Iro?

    If you do find a thread I've missed--have mercy. I've tried. And had hundreds of questions answered without ever posting.

    Thanks!

  2. #2
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    there is probably no difference whatsoever. they're probably made by the same factory in taiwan with the same specs.

  3. #3
    Veteran Bastard Scrodzilla's Avatar
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    I just switched my drivetrain over to 1/8" and went with an EighthInch 18t cog & lockring. I'm impressed quite a bit with both of them and despite 1/8" chains and such supposedly being a little noisier, my drivetrain has never been quieter.

  4. #4
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    Quote Originally Posted by bionnaki View Post
    there is probably no difference whatsoever. they're probably made by the same factory in taiwan with the same specs.
    Why does everyone always say this about every product made overseas? Is there just one factory in Taiwan that makes everything?
    1988 Miele Azsora

  5. #5
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    I've often wondered if there's a grey market in Taiwan that sells "factory seconds" of incredible frames and components for next to nothing.

    Scrodzilla thanks. Looking forward to hearing how those parts are doing after you've put a few miles on them--I'm taking my time with this build.

  6. #6
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    Quote Originally Posted by jtgotsjets View Post
    Why does everyone always say this about every product made overseas? Is there just one factory in Taiwan that makes everything?
    No, no, Taiwan is a factory. Haha, but in all seriousness, I couldn't answer your question. But to respond to the OP, I think the difference (if there is one) between the quality from IRO vs the quality from EighthInch will be much less than negligible.

  7. #7
    A guy who rides bikes Aaron_F's Avatar
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    I have a brand-new EighthInch 15T cog and lockring that I took off when I got my bike, since I only plan to run singlespeed. The cog has never felt the cold, hard steel of a chain against it. PM me if you're interested.
    Last edited by Aaron_F; 11-22-09 at 11:29 AM.

  8. #8
    Senior Member mihlbach's Avatar
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    Quote Originally Posted by leed View Post
    No, no, Taiwan is a factory. Haha, but in all seriousness, I couldn't answer your question. But to respond to the OP, I think the difference (if there is one) between the quality from IRO vs the quality from EighthInch will be much less than negligible.
    Define "quality".

    Serously, the Eightinch cog is fine. I've used DA, Surly, Soma, EAI, Miche, and Eightinch, and generic cogs. I can't tell a difference.

  9. #9
    The bus, Gus mrvile's Avatar
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    Quote Originally Posted by thom74 View Post
    I've lived off the search function for months and months, but finally have a question that doesn't seem to have been asked before.

    I'm building up an Iro Mark V and wanted to know how Eighthinch 3/32" drivetrain products compare with Iro stuff. The prices are pretty close, but Wheel&Sprocket offers free shipping off eBay. Plus those Eighthinch cogs look pretty good.

    Worth a try? Or just stick with Iro?

    If you do find a thread I've missed--have mercy. I've tried. And had hundreds of questions answered without ever posting.

    Thanks!
    You mean 1/8" drivetrain, right?

  10. #10
    Veteran Bastard Scrodzilla's Avatar
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    EighthInch does make 3/32" cogs/chainrings too.

  11. #11
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    Quote Originally Posted by jtgotsjets View Post
    Why does everyone always say this about every product made overseas? Is there just one factory in Taiwan that makes everything?
    IRO and Eighthinch probably go through Maxway who have different contractors for different components. You are correct: there are multiples "factories" that actually manufacture the goods, but small US vendors probably only deal with one entity themselves and chances are it's Maxway. That said, if they both deal with Maxway, the cogs are probably obtain through the same contractor / made by the same factory.

  12. #12
    The bus, Gus mrvile's Avatar
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    Quote Originally Posted by Scrodzilla View Post
    EighthInch does make 3/32" cogs/chainrings too.
    Oh yeah? Strange irony...

  13. #13
    Veteran Bastard Scrodzilla's Avatar
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    I know, right? I even didn't realize they did until I ordered a 1/8" cog and they sent a 3/32 by mistake. When I read the label on the bag it was in I was pretty confused.

  14. #14
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    Thanks Aaron, but my legs are so powerful that they'll need a few more teeth than that.

  15. #15
    neato teedoff087's Avatar
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    Wouldn't your legs need to be more powerful? Or was that a joke?

  16. #16
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    Yep, I'm trying to make my noodle-like legs feel better. I'm going for 17 teeth.

  17. #17
    The bus, Gus mrvile's Avatar
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    Haha it's okay, I run 46-18 and I always feel like a real man.

  18. #18
    * adriano's Avatar
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    my 21t cog is heavier so i carry more weight and am more manly.


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