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Thread: 50T Chainring

  1. #1
    don't door me bro! Oramas's Avatar
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    50T Chainring

    I just picked up some Omniums with a 50T chainring. The seller stated that it was "true track" but i'm curious what effect will a 50T have over what I've come to believe is a standard 48T chainring. Apparently the chainring is a vintage Sugino Mighty (somehow different then the current version, or so the seller stated). Would it be best to leave it on or switch it to a 48T? The seller was very animate about this chainring being worth a lot, NJS ect but i'm just interested in the difference of a 48T v 50T. About to purchase a cog but wanted to see what the more veteran forum members had to say.

    Last edited by Oramas; 04-14-11 at 02:04 PM. Reason: because i'm stupid

  2. #2
    Fresh Garbage hairnet's Avatar
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    I don't understand what you're concerned about. For a given cog the 50 will give a slightly higher gearing than a 48

    It looks cool so keep it
    Last edited by hairnet; 04-14-11 at 01:35 PM.
    Quote Originally Posted by Scrodzilla View Post
    I often need to flip my brain to the freewheel side when reading this forum.
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  3. #3
    i smell bacon yummygooey's Avatar
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    Why would a chainring affect the chain line? Any effect due to thickness differences will be negligible.
    // yummygooey

  4. #4
    don't door me bro! Oramas's Avatar
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    I suppose I was just curious on the effect of a 50T vs 48T would have and why most builds I see have 48T.

  5. #5
    i smell bacon yummygooey's Avatar
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    Most crank sets I've seen come stock with 48t chainrings. Maybe it's just a manufacturer preference?

    Changing the chainring size shouldn't change the chain line. It'll just change where your rear axle sits in the rear track end.
    // yummygooey

  6. #6
    Fresh Garbage hairnet's Avatar
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    smaller than 52, larger than 42. It's a size that lets you get through the range of high to moderately low gears with cog sizes shops usually stock, that's my guess.
    Quote Originally Posted by Scrodzilla View Post
    I often need to flip my brain to the freewheel side when reading this forum.
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    Elitist carleton's Avatar
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    It's a Sugino "Drillium" chainring. It has "S-50" stamped on it with no other markings, right?

  8. #8
    don't door me bro! Oramas's Avatar
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    Quote Originally Posted by carleton View Post
    It's a Sugino "Drillium" chainring. It has "S-50" stamped on it with no other markings, right?
    why am i not surprised by this, but yes.
    Last edited by Oramas; 04-14-11 at 02:44 PM. Reason: carleton is always causing /thread

  9. #9
    Elitist carleton's Avatar
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    Quote Originally Posted by Oramas View Post
    why am i not surprised by this, but yes.


    It's a nice chainring. Keep it. If you choose to ride it, use a cog that is 1 tooth bigger than normal. If you usually run a 48/18, now run a 50/19. It will take up more chain, so consider that, too. A longer chain than is currently on your bike may be required.

  10. #10
    don't door me bro! Oramas's Avatar
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    Quote Originally Posted by carleton View Post


    If you choose to ride it, use a cog that is 1 tooth bigger than normal.
    THIS was what I was trying to get at with my question regarding the chainline ect but was unable to articulate it.

    When Carleton speaks, /thread follows.

  11. #11
    Fresh Garbage hairnet's Avatar
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    Quote Originally Posted by Scrodzilla View Post
    I often need to flip my brain to the freewheel side when reading this forum.
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  12. #12
    Blaster of Reality Scrodzilla's Avatar
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    I have an unused 48t Omnium chainring that I'd be willing to sell. Shoot me a PM if you want it.

  13. #13
    don't door me bro! Oramas's Avatar
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    Quote Originally Posted by hairnet View Post
    thanks for this!

  14. #14
    Senior Member martinus's Avatar
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    Because, all the
    Quote Originally Posted by Oramas View Post
    true
    bad-arses ride 50/15. Oooo...

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    Bend the knees, watch the trees ... 5 $ please .

  15. #15
    . xavier853's Avatar
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    What's wrong with a 50t chainring? I run a 49t and want to go up.

  16. #16
    hateful little monkey jim-bob's Avatar
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    Go up one tooth on the chainring? Why bother?

  17. #17
    モㄥ工匕モ 爪モ爪乃モ尺 evilcryalotmore's Avatar
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    on my road bike i have a 56 and i go low as 10 in the rear.

  18. #18
    GONE~
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    Last I checked your road bike had Sora and 10t- cassette doesn't exist.

  19. #19
    Blaster of Reality Scrodzilla's Avatar
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    Quote Originally Posted by jim-bob View Post
    Go up one tooth on the chainring? Why bother?
    This. You'd notice much more difference dropping a tooth on your cog.

  20. #20
    Blaster of Reality Scrodzilla's Avatar
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    Quote Originally Posted by evilcryalotmore View Post
    on my road bike i have a 56 and i go low as 10 in the rear.

  21. #21
    Senior Member Corwings's Avatar
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    Quote Originally Posted by hairnet View Post
    I didn't like this the first time I tried it... It killed Chrome

  22. #22
    Real Men Ride Ordinaries fuzz2050's Avatar
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    Quote Originally Posted by Scrodzilla View Post
    Maybe he has a folding 'road bike'. I'm to lazy to check

  23. #23
    GONE~
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    Quote Originally Posted by fuzz2050 View Post
    Maybe he has a folding 'road bike'. I'm to lazy to check


    I stand corrected! 9-26, such huge jumps.

  24. #24
    Senior Member martinus's Avatar
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    From all the sarcastic comments, looks like you should be ok ... ( going to a 50, its maybe 3-4 GI more. )

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    Bend the knees, watch the trees ... 5 $ please .

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