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  1. #1
    Lif is too short durty's Avatar
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    chainring hits frame

    I just got a new BB for an old frame, screwed it in and put the cranks on. But when I screwed the bolts in to the square tapers to keep the cranks on and the chainring was stuck up against the frame. What's can I do about that?
    -durty

  2. #2
    slow as I ever was Ex Pres's Avatar
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    You need a bottom bracket with a longer spindle, probably 8mm or so longer. What BB did you buy and what crank do you have?
    72 special CNC ___________ 72 Frejus (ala Legnano) __73 Holdsworth Record
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  3. #3
    cab horn
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    Quote Originally Posted by durty View Post
    I just got a new BB for an old frame, screwed it in and put the cranks on. But when I screwed the bolts in to the square tapers to keep the cranks on and the chainring was stuck up against the frame. What's can I do about that?
    -durty
    You can buy the proper length bb, which is very likely longer than what you currently have.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  4. #4
    Senior Member DannoXYZ's Avatar
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    be aware that a lot of older cranksets use asymmetrical BB spindles with the longer end on the right. Make sure the new one you get matches the one you took off.

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