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  1. #1
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    handlebar measurement

    hi. i have a 2007 felt f4 and want to replace the handlebars but i'm unsure of how to measure them to make sure i get the same size. where do you take the measurement and is it 1) center to center on the tubing; 2) outside edge to outside edge; or 3) inside edge to inside edge? how about the diameter (am i correct in assuming it's 31.8?

    thanks

    jeff

  2. #2
    Keep on climbing
    Join Date
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    According to Wikipedia:

    The width is measured at the end of the drop section but the exact method varies from manufacturer to manufacturer. Some measure from outside edge to outside edge (e.g. Deda, ITM, TTT) whereas others measure from center to center (e.g. Cinelli, Profile Design, Ritchey, Salsa).[1] The figure returned by measuring outside to outside tends to be 2 cm greater than measuring center to center for the same handlebar.
    The clamp diameter is the outside diameter of the handlebar in the center of the bar. The bars I've seen (admittedly not that many) have the clamp diameter printed on the bar somewhere. The standards I know of are 25.4, 26.0 and 31.8mm, so a rough measurement should tell you what it is as well.
    "There is more to life than increasing its speed" -- Mahatma Gandhi

  3. #3
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    Quote Originally Posted by KevinF View Post
    According to Wikipedia:



    The clamp diameter is the outside diameter of the handlebar in the center of the bar. The bars I've seen (admittedly not that many) have the clamp diameter printed on the bar somewhere. The standards I know of are 25.4, 26.0 and 31.8mm, so a rough measurement should tell you what it is as well.
    thanks man. this is extremely helpful. i just measured c/c on the tubes in the drops and it's pretty much spot on 44cm -- i'm considering both the Ritchey WCS Classic and Salsa Short and Shallow bc of my short torso/arms and since both are calculated c/c looks like i'd need 44cm in both. i looked up the specs on the f4 and it's 31.8 clamp diameter so i'm good to go now. thanks again.

  4. #4
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    This is one time where I think there ought to be a law about standardization of how the mfgs. measure them. Go on ebay to see what I mean.

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