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  1. #1
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    650b 27.5 x 2.10 actual diameter?

    I am looking for a fast XC hardpack tire to mount on 650b wheels on a 26 inch bike. Right now, the bike has 700x35c tires on 29 x 19mm rims. I am looking for something between 27 1/4" and 27 3/8" actual diameter.

    What are the actual measurements of Maxxis Aspen, Tread Lite, or Ardent Race in the 650b size?

    Also looking at the Pacenti Quasi-Moto 650B x 2.0
    Last edited by MudSnow; 07-30-2015 at 09:16 AM.

  2. #2
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    I don't know the exact measurements of these particular tires but here is a link to a reasonable list of all tire circumference calculations:

    BikeCalc.com - How to calculate Bicycle Wheel Size

    This is handy for comparing generic tire/wheel sizes.

  3. #3
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    Quote Originally Posted by shif View Post

    BikeCalc.com - How to calculate Bicycle Wheel Size

    This is handy for comparing generic tire/wheel sizes.
    Thanks, looks like most 650b 2.0 or 2.1 tires should fit on my 26" bike with no problem.

  4. #4
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    Quote Originally Posted by MudSnow View Post
    Thanks, looks like most 650b 2.0 or 2.1 tires should fit on my 26" bike with no problem.
    Schwalbe Thunderburt 2.1 is 690mm and Rocket Ron is 694mm

    Kenda Karma 2.0 is 696mm

    This is on a Stan's Crest @ 24psi

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