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  1. #1
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    help me understand rear wheel axle / hub " spacing " please

    i was going to get an extra set of wheels for a cyclo cross bike that has discs.

    this is so i can have a set of wheels with road bike tires on it.
    for weekly training rides .
    so i can get used to the bike and keep up on road bike group rides.

    i am unsure about 700 c and 29'er size wheels that accept disc brakes.
    and how to know spacing

    is spacing an issue for front wheel too ?

    the extra wheel set is for this bike
    2013 Jamis Nova Sport

  2. #2
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    Quote Originally Posted by lunna View Post
    i was going to get an extra set of wheels for a cyclo cross bike that has discs.

    this is so i can have a set of wheels with road bike tires on it.
    for weekly training rides .
    so i can get used to the bike and keep up on road bike group rides.

    i am unsure about 700 c and 29'er size wheels that accept disc brakes.
    and how to know spacing

    is spacing an issue for front wheel too ?

    the extra wheel set is for this bike
    2013 Jamis Nova Sport
    Front wheel spacing is almost certainly 100mm if it's a reasonably new bike.

    Rear spacing is probably either 130mm or 135mm (road or standard mtb spacing.)

    Bicycle Frame/Hub Spacing

    Cross bikes and hybrids come in both flavors, so you'll have to measure.

  3. #3
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    i would like to be able to just look and know.
    but that is not so easy then.

    i need a wheel the fits the needed spacing
    and also accepts a disc.

    this is so i can have the wheels ready to throw on
    with just a quick release process.

  4. #4
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    Sure looks to be 130mm from the specs:

    "Formula alloy disc road hubs"

    ... so you need road wheels, with a hub that supports discs. Unless there's a spacer in there or something. Best bet is still to look at it and measure.

  5. #5
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    Ditto on measuring. From Jamis' site, they specifically say that the Supernovas have 135mm spacing in the rear. Makes me think that the other ones do not.

  6. #6
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    Go to this site for a "how to measure" and a picture Bicycle Frame/Hub Spacing

    urmb ]-
    “Nothing compares to the simple pleasure of riding a bike.” ~ John F. Kennedy

  7. #7
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    Not sure if you can do it with Aluminum and succeed, but I stretched my steel cross bike to 135mm rear spacing so I have a wider selection of rear disc hubs. If you're interested in set of Bontrager Select Disc wheels (with 130mm rear), shoot me a PM.

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