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  1. #1
    Senior Member
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    Feb 2003
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    The Alta Loma area of Rancho Cucamonga. About 45 miles east of Los Angeles, California. Uphill, downhill and across hill riding; not too level!
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    How to measure a bike frame?

    Can any one please tell me or give me a line to somewhere that explains how to measure a bike frame? I want to measure the bike frame itself, NOT me for the frame; from where to where do I measure a top tube, seat tube, etc?

    I live in a pretty nice neighborhood and might be able to find a nice "garage bike" at a yard/garage sale for a second mount for myself or my husband.

    thanks.

  2. #2
    It tastes like burning! deliriou5's Avatar
    Join Date
    May 2002
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    SOUTH Jersey
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    take a measuring tape or ruler.... put the end at the center of the crank spindle.... then measure to the end of the seat tube...

    Now is where it gets tricky.... some manufacturers measure from center of bottom bracket to center of top tube. if you measure this way, you measure up to approximately center of where the top tube meets the seat tube.

    Other manufacturers measure from center of bottom bracket to top of top tube. if you measure this way, you measure up to where the top of the top tube meets the seat tube.
    The only true knowledge is knowing that you know nothing - Socrates

    Back on the bike!!

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