Crank, chainline, SS and disc
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  1. #1
    RoadBikeReview Member
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    Crank, chainline, SS and disc

    I had this idea to have a cyclocross frame built up with disc tabs and EBB (68mm). I would use a Paul Word rear disc hub (135mm spacing) with a freewheel (~52mm chainline) and also it would be possible to flip it over and use a bolt on cog instead of the rotor (~52mm chainline) and get a fixie. Wouldn't that be nice? If I could only find the crankset for it but I'm stuck. Any suggestions?

    Of course there are MTB SS cranksets that would have the chainline but they all seem to have 104mm BCD. Double road cranks seem to be about 46mm on the outer ring. Closer but still not there and not as clean as a dedicated single speed crank.

  2. #2
    now in philadelphia
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    Any square taper crankset with a longer BB. Voila.

  3. #3
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    So it really is that simple then. I didn't dare to hope =) Thanks

    Longer axle i presume. Doesn't that look funny? Well maybe not and I'm happy as long as it works.

    Edit:
    As for example if i want to use these
    http://www.universalcycles.com/shopp...&category=1627
    and add 10mm to the chainline i could have the 68x127mm of these?
    http://www.universalcycles.com/shopp...284&category=5
    Last edited by PrinsValium; 04-29-2008 at 03:58 PM.

  4. #4
    now in philadelphia
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    You don't even need to use a track crankset. Any road crankset will do.

    sheldonbrown.com has good info on chainline.

  5. #5
    RoadBikeReview Member
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    Yes, I was only checking if I did the calculation right. If the recommended BB is 107 then I would have to go for 127 to gain 10mm. The outer road ring should be at 46mm compared to 42mm for track according to Sheldon and then it would only be 6mm more which should be more doable. We'll seems like that solved the problem. Thanks again.

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