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  1. #1
    Geek Extraordinaire sivat's Avatar
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    Surly or E.A.I Cogs?

    I'm getting a new rear cog. Should I go Surly or E.A.I.? I'm getting a 16 tooth, so the drilling done on the larger surlys is not an issue.
    I'd rather have a bottle in front of me than a frontal lobotomy.

    Sintesi Conversion Serotta Track

  2. #2
    Crapzeit! mcatano's Avatar
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    Eai.

  3. #3
    yo yo yo yo yo
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    why not da?

  4. #4
    Senior Member morbot's Avatar
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    what is the drilling on the surlys for?

  5. #5
    Gone, but not forgotten Shiznaz's Avatar
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    I would say EAI. Surly has a slightly wonky thread pitch and I have heard stories of them being prone to stripping threads on cheaper hubs. It happened to me as well, but I puyt most of the blame on the suzue basic hub rather than the cog. Still though, if you have the choice EAI is pretty much the best cog out there. Surly just has all the sizes.

  6. #6
    Geek Extraordinaire sivat's Avatar
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    They claim it makes the cog lighter. Obviously it does, but is it enough to matter? Not on my heavy ass bike.
    I'd rather have a bottle in front of me than a frontal lobotomy.

    Sintesi Conversion Serotta Track

  7. #7
    huaraches es amor bikeage's Avatar
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    Quote Originally Posted by sivat
    They claim it makes the cog lighter. Obviously it does, but is it enough to matter? Not on my heavy ass bike.
    holy crap someone from Long Beach, CA!

  8. #8
    make way for the MGL MLPROJECT's Avatar
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    Eai 100%.

  9. #9
    huaraches es amor bikeage's Avatar
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    EAI or Dura Ace...

  10. #10
    King of the Hipsters
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    I have EAI, DA and Soma cogs.

    I have examined Surly cogs at my lbs.

    I like the quality and finish of the EAI cogs, the best.

    That said, take the various cogs and put them on a table top, next to each other.
    They each have a different height, or offset from the table.
    This means each of them supports a slightly different chain line, with a given hub.

    I think chainline, more than aesthetics, should govern the choice.

    I would go with whichever EAI, DA or Surly cog that gave me the best chainline, and feel good about it.

  11. #11
    Esse Quam Videri daibutsusan73's Avatar
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    Quote Originally Posted by morbot
    what is the drilling on the surlys for?
    The newer Surlys have a slightly larger footprint for greater thread engagement. I am guessing that because of the added material they drillled them to keep the weight down to what it was originally.

  12. #12
    team mascot sr20det's Avatar
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    eai, no question bout' it.
    physics hertz.

  13. #13
    Cornucopia of Awesomeness baxtefer's Avatar
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    phil?
    {o,o**
    |)__)
    -"-"-

    O RLY?

  14. #14
    team mascot sr20det's Avatar
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    only if you've ever won the lottery.
    physics hertz.

  15. #15
    Cornucopia of Awesomeness baxtefer's Avatar
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    they're only $5ish more than EAI's
    but i dunno if they're even making 16Ts right now.
    {o,o**
    |)__)
    -"-"-

    O RLY?

  16. #16
    J.A.M Jamtastic's Avatar
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    i love my phil cog. really well built. it has nice chainline with phil hubs too haha.

  17. #17
    Esse Quam Videri daibutsusan73's Avatar
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    I just went with the Surly because of the greater thread engagement. I may go with an EAI when I get together enough dough to buy a new crankset, and upgrade the whole drive setup.

  18. #18
    PBR ME ASAP Plow Boy's Avatar
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    Eai on the road and off road.

  19. #19
    you
    you is offline
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    Aren't EAI's the cogs that are prone (well... more prone) to breaking in half? That said, I ride a surly at school and a da at home and neither has failed me.

  20. #20
    Senior Member morbot's Avatar
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    personally, i think you're absolutely fine with either. if price and gear size werent issues, id go with the EAI i guess, because of reputation. i doubt you'll have a problem with either though.

  21. #21
    jack of one or two trades Aeroplane's Avatar
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    I'm using an EAI and a Surly right now. Both are good, but the Surly is cheaper and shinier. Advantage, Surly.
    Quote Originally Posted by Dr Irwin Goldstein
    Men should never ride bicycles. Riding should be banned and outlawed. It is
    the most irrational form of exercise I could ever bring to discussion.

  22. #22
    Honking drivers see you noriel's Avatar
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    I'm currently trying to make this decision also. I'm running a Surly at the moment, on my stock Fuji track wheel. This wheel's about to die, and I'm popping spokes every week. The drillings in the Surly are really handy when you can thread a spoke through them and not have to take off the cog. I think I'll go with the EAI for my next wheel, though.
    Noriel
    ----------------
    Geared-->SS-->Fixie.
    Somewhere between I got a dual slalom and mod trials bike.
    I think I'm through with derailleurs.
    I guess uni's are my next step.

  23. #23
    i don't stop travsi's Avatar
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    eai ..or dura ace

  24. #24
    spin The LT's Avatar
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    I am using a surly and I like it no problems so far

  25. #25
    Geek Extraordinaire sivat's Avatar
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    Holy crap this thread got popular! I decided to go with the EAI. Mostly because of the sheldon brown recommendation. Perhaps if i decide to get another size, I'll try surly and compare. Bikage, where do you ride?
    I'd rather have a bottle in front of me than a frontal lobotomy.

    Sintesi Conversion Serotta Track

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