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Thread: Will it fit me?

  1. #1
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    Will it fit me?

    Thanks for reading this.

    I have the opportunity to by a 3 year old Eddy Merckx 1XM frameset (56cm) for a VERY reasonable price. This will be my first real road bike as I now ride a 6 year old mountain bike. I'm 5' 9 1/2" with a 32" inseam. I should probably get a 54cm bike, but it sounds like too good a deal to pass up.

    I already have some parts to put on a frameset consisting of 105, Ultegra SL, FSA SL-K and Mavic Ksyrium Elite. I do plan on taking it to a bike shop close to where I pick it up just to get an opinion. From what I've read, this frameset is good for comfortability. Lance doesn't have to worry about me passing him .

    I'm 55 and plan to ride just to ride for health reasons. I want to stay healthy!!! LOL

    Thank you for your opinions.

  2. #2
    gone ride'n cyclinfool's Avatar
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    Check out the top tube length. If that's too long it will be hard to correct.
    "Of all the things I ever lost I miss my mind the most." Mark Twain
    If all you have is a hammer, every problem looks like a nail.

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    Here are the geometry specs.

    Carbon 1XM ~


    Size Top tube Seat angle Setback Head angle Head tube 48 51.5 75.3 11.3 71.5 12.0 53 54.5 75.3 11.7 71.5 13.5 56 57.0 74.2 13.6 73 15.5 59 59.5 72.3 16.4 73.2 20.0

    Sorry, the table didn't come out right.




    Last edited by Igoslo; 03-28-10 at 05:20 PM.

  4. #4
    gone ride'n cyclinfool's Avatar
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    I think I get it. You are a little smaller than I am - that TT length would be a little long for me.
    One never knows though, you may be able to make it work.
    "Of all the things I ever lost I miss my mind the most." Mark Twain
    If all you have is a hammer, every problem looks like a nail.

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    FWIW, in my view a bike -- however great a 'bargain' -- is no bargain at all if it doesn't fit.
    Given your stated height, and assuming the bike's geometry is as stated, it (that frame) definitely sounds not only too big, but perhaps even far too big. This is especially true of the t/t dimension when combined with the stated seat angle of 74.2; if it were a 73 or 72 s/a, possibly (though doubtful), but a 570 mm t/t (I'm assuming 'effective') with a 74+ s/a is a looooong bike.
    If you were unusually 'long' in the torso (relative to your leg length) it might work, but doesn't sound like that's the case.
    For reference, I'm just a bit shorter than you, with a 33" true (floor to pubic bone) cycling inseam, and I take a 535 to 540 mm t/t in a road bike (assuming a 73 degree s/a).
    Just sayin'!

  6. #6
    Senior Member bruce19's Avatar
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    I'm 5'9" (down from 5' 10" due to aging) with a 32.5" inseam and I ride a 56 (C to C) Masi Gran Criterium S. I had a LeMond TI that was 54 C to C and it was OK but just a bit too small. You really need to sit on it or ride it or have someone who knows bike fitting help you out.

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    Just wanted to thank everyone who responded. Found out the frameset was a 2007. The TT spec on the 56cm was 59cm! LOL

    I agree it's too long for my size. I did have a chance to sit on 54cm Specialized Roubaix and it felt GOOD. Guess what frameset I'm looking for now. hahaaa Wish me luck.

    Thanks everybody.

  8. #8
    Senior Member bruce19's Avatar
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    This post has raised a question for me: when measuring the top tube on a bike with a sloping top tube, do you measure from the center of the steering stem to the center of the seat post? This is rather than following the slope of the top tube. Seems logical to me.

  9. #9
    just keep riding BluesDawg's Avatar
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    Quote Originally Posted by bruce19 View Post
    This post has raised a question for me: when measuring the top tube on a bike with a sloping top tube, do you measure from the center of the steering stem to the center of the seat post? This is rather than following the slope of the top tube. Seems logical to me.
    Yes. This is usually called "effective" or "horizontal" top tube measurement. You measure where the top tube would be if it were horizontal.
    The more you ride your bike, the less your ass will hurt.

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    Quote Originally Posted by Igoslo View Post
    Just wanted to thank everyone who responded. Found out the frameset was a 2007. The TT spec on the 56cm was 59cm! LOL

    I agree it's too long for my size. I did have a chance to sit on 54cm Specialized Roubaix and it felt GOOD. Guess what frameset I'm looking for now. hahaaa Wish me luck.

    Thanks everybody.
    That is a loooong bike!! I'm not surprised the 54 Roubaix feels right given your height/inseam -- good luck with the search!

  11. #11
    Senior Member bruce19's Avatar
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    I went out and measured the effective TT of my 56 Masi and it was a 59. I shortened the stem from 110mm to 100mm and the bike fits me perfectly. And, as I said previously, I'm 5'9" with a 32.5" inseam.

    After looking at some other bikes' specs I must be measuring this incorrectly. The TT measurement seems much too long. I'll have to check this out.
    Last edited by bruce19; 03-31-10 at 03:14 AM.

  12. #12
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    The top tube length of the 56 cm Specialized Roubaix is 56.5 cm for comparison. I'm 5' 8" with an inseam of 29", so I seem to be at the other end of the inseam/torso length scale. My 56 cm Roubaix fits quite well with the stock stem. I remember 15 years ago I had a 54cm Trek 2300. When I had it professionaly set up I had to go to a longer stem to get a proper fit.
    I guess where I'm headed with this is to point out the value of getting someone knowledgeable to fit you to the proper size bike. Coming from a MTB background you may need a longer top tube (or stem length) than you might think. That's what happened with me anyway.

    Regards, Jim

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