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Thread: 39t crank

  1. #1
    Bianchi Power! decline's Avatar
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    39t crank

    does anyone use a single 39t chain ring on there crank, i am using a double crank that is set to the 39t but i am looking for a single 39t crank i have never seen one, any ideas?

  2. #2
    Senior Member soyboy's Avatar
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    cut three teeth off of a 42, sorry, i'm an ass

  3. #3
    Cornucopia of Awesomeness baxtefer's Avatar
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    remove the big ring from your current crank?
    {o,o**
    |)__)
    -"-"-

    O RLY?

  4. #4
    Bianchi Power! decline's Avatar
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    its an old crank from the 70's so they are pinned together, i am just asking if you can buy a 39t single crank or if i have to buy a new double and take of the 53t ring.

  5. #5
    Cornucopia of Awesomeness baxtefer's Avatar
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    well you could just buy the arms and chainring separately
    {o,o**
    |)__)
    -"-"-

    O RLY?

  6. #6
    Senior Member abeyance's Avatar
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    Or buy a regular crank and ebay the 53
    not banned anymore

  7. #7
    Member's Only summerinside's Avatar
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    people make 39's all the time - that's a fairly normal chainring for ss MTB or cyclocross

  8. #8
    Senior Member sfcrossrider's Avatar
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    My cross bike has a 39 single up front and nine in the back. It's an old Salsa cross ring that I picked up in the late 90's. I have a cross chain guard set up on it to keep it from coming off when I race. It's worked fine so far.

  9. #9
    blah onetwentyeight's Avatar
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    Might be able to find a BMX that size.

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    Quote Originally Posted by decline
    its an old crank from the 70's so they are pinned together, i am just asking if you can buy a 39t single crank or if i have to buy a new double and take of the 53t ring.
    first step is to figure out what the bolt pattern is.

  11. #11
    Geek Extraordinaire sivat's Avatar
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    If the rings are pinned, it may be a cottered crank. They suck. The best bet is to get a new bottom bracket and crankset. Look for a square taper. The bulletproof cranks are good for the price. I think you can get them for about $30 on ebay. $20 for a new bb, and $15 for the chainring and you're good to go.
    I'd rather have a bottle in front of me than a frontal lobotomy.

    Sintesi Conversion Serotta Track

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