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  1. #1
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    Need Sizing Help Please

    im 5'9" and thinking of buying a giant NRS "medium." is this bike too small for me or can it be adjusted to fit?

  2. #2
    Perineal Pressurized dobber's Avatar
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    There are tons of web sites with helpful (and not so helpful info) on sizing a bike. Most can get you into the general ballpark.

    Heres one: http://www.wrenchscience.com/WS1/default.asp

    I'm 5'-9" and ride a 16" or 18" MTB, 54-56cm road. For me, the top tube length is what defines my fit. You can tweak a too small bike a bit with a longer stem or seatpost.

    Best thing to do is work with the shop to find one that fits you and one that you feel comfortable on.
    This is Africa, 1943. War spits out its violence overhead and the sandy graveyard swallows it up. Her name is King Nine, B-25, medium bomber, Twelfth Air Force. On a hot, still morning she took off from Tunisia to bomb the southern tip of Italy. An errant piece of flak tore a hole in a wing tank and, like a wounded bird, this is where she landed, not to return on this day, or any other day.

  3. #3
    Junior Member
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    wow.. really? 16 or 18? humm. i ride a 21" park pre..but i think it al depends on the brand of bike. what do you think? i rode a giant 18.5 the other day and it seemed too small-it wasnt the carbon fiber NRS that im thinking of buying though. i didnt really try to make any adjustments to see if i could make i fit either.

  4. #4
    slower than you Applehead57's Avatar
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    You can go the measurement route, very sensible.
    I did mine a couple of years ago, on the wrenchscience web-site.
    I think there is no substitute for setting your best feature up on the saddle.
    You'll learn more by checking the fit on the bike you're considering purchasing.
    There are alot of variables, and you really should take a long ride too.
    How the bike feels in the shop may not be how it feels after a long day in the saddle.
    "Lack of opportunity does not constitute virtue". Diana Tickle.

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