bike sizes confused

Discussion in 'Cycling Equipment' started by complience, May 19, 2007.

  1. complience

    complience New Member

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    Im looking to buy a new mountain bike but im a little confused

    Im around 5'10 tall and ride a 55.8cm Felt Roadbike or 22"

    and ive been told that means i should be looking at a size 17" Mountain bike
    but all the bikes ive looked at seem to be using a different scale (40 to 58 cm i guess)

    im really confused, how much smaller or bigger should a mountain bike be compaired to a roadbike frame and why some places measure in Inches and others in CMs?
     
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  2. gclark8

    gclark8 New Member

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    MTBs are in inches, yes 17"-18" would be right for you.

    If in doubt, compare the (horizontal) top tube dimension, it will be just slightly longer than the road bike.
     
  3. complience

    complience New Member

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    Am i right in thinking a 17/18" frame is the same as a 45/46cm frame?

    and if that is right, should someone who rides a 56cm road bike frame, be riding a 46cm mountain bike frame?

    should a mountain bike frame be a whole 10cm smaller on average than a roadbike frame, basicly?

     
  4. Scotty_Dog

    Scotty_Dog New Member

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    Read the mention about mountain bikes in section "B - Frame Size" here: http://www.coloradocyclist.com/bikefit/
     
  5. complience

    complience New Member

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    cool thanks you've help me out alot.
     
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