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  1. #1
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    PLEASE HELP! What are these tubular tires? 26 or 27.5 or 29er??

    I purchased Challenge The One tubular tires that the seller ad and insist they are 26 inch tires.

    When I got them, I am very confused, "Are these really 26inch tubular tires???"

    I think they are 27.5 or 29er tubular tires.

    Please refer to these pictures, and seller's insistence.

    Anybody help to exact specific way HOW to differentiate these tire size and give some proof for the reason?

    http://imageshack.us/a/img4/878/ctvo.jpg

    http://imageshack.us/a/img829/5074/xrqw.jpg
    Last edited by sccott; 06-21-2013 at 01:17 AM.

  2. #2
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    You could try taking an accurate measurement of the inner diameter of the tubular. See the link below for the rim diameters of 26, 27.5, and 29 rims.

    What?s Driving the 650B Explosion? Interviews, Tech Breakdown & More!

  3. #3
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    Well, have you tried mounting it and inflating?
    Livin' the dream.

  4. #4
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    Quote Originally Posted by oldskoolm4 View Post
    Well, have you tried mounting it and inflating?
    Yes, see, http://imageshack.us/a/img829/5074/xrqw.jpg.
    As you see, I can not tight fit(not inflated) to clue on the rim, just slip on easily(only inflated condition). These are whole different other than normal 26er tubular size.

    I am very suspicious they are 27.5........

  5. #5
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    That does not look right at all, I would take to a LBS and see if they would size them to a 27.5.

  6. #6
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    Ah, Yeah that doesn't look like a 26 tire. If it were I'd be nervous about rolling it off the rim. Do you have access to a 650b wheel?
    Livin' the dream.

  7. #7
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    Quote Originally Posted by oldskoolm4 View Post
    Ah, Yeah that doesn't look like a 26 tire. If it were I'd be nervous about rolling it off the rim. Do you have access to a 650b wheel?
    NO, my local bike shop is far away, and I don't have 650b wheel.
    The seller just keep insist they are 26er.
    I should to get conviction my own, so I need your users help.

  8. #8
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    This thread doesn't make any sense. The Geax is clearly a 26 as evidenced by the tag. It's the challenge tire you are talking about right?

    and why is this thread in the 29er forum? Put it in wheels/tire forum for more help.

  9. #9
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    Quote Originally Posted by Flucod View Post
    That does not look right at all, I would take to a LBS and see if they would size them to a 27.5.
    Yeah, that's probably the safest way to go about it..

  10. #10
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    According to the Challenge website I only see 650B and 29" available.
    MTB ONE

  11. #11
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    Sorry to Hijack your tread but I have been looking for those exact tubulars in 27.5 - would you let me know where you bought them? I will even buy that pair from you if they are in fact 27.5.

    Thanks

    Jose

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