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Bike Fit

Old 09-10-07, 10:23 AM
  #1  
rohmen
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Bike Fit

I have the chance to grab a 55cm frame for a good deal. The standover height is around 31.4 inches. I would normally ride a 57cm in this frame style (32 inch standover). I have a 33 inch inseam. Is the .6 inch difference something I'm likely to notice over the long run. Unfortunately, I can't test ride the bike before I buy it (it would be an online purchase). I guess I could try to find a similar 55cm frame at an LBS, but not sure if I have time to do that before I need to make the decission. Is it worth going for the slightly smaller bike if I can get a great deal???
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Old 09-10-07, 10:51 AM
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Longfemur
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I don't know what you can tell from standover height except that it's nice to have at least a little. Will you notice a half an inch difference? No. Of course, more standover height given two bikes of the same model will mean the maximum height of your handlebars will be that much lower. Chances are the smaller bike will have a bit shorter top tube, but you should be able to easily compensate for that with a stem that much longer.
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Old 09-10-07, 11:11 AM
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Podolak
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My opinion is to get an idea of the top tube length. As Long Femur pointed out, this can be compensated for with different stem options. You may still feel cramped though so if you could jump on a 55 prior to purchase I'd highly recommend it.
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Old 09-10-07, 03:21 PM
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robmcl
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Stand over height is import in that you need at least an inch of it but not too much that you max out the seat post extention before you get full extention on the pedals. I don't think it is a problem to have 4 or 5 inches if you have enough seat post extention.

I think you need to figure out what you need for top tube length. There is some flexibility with changing stem length but it may not compensate for a total misfit.
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