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  1. #1
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    kinetix pro's with kojak's any one recommend Ultremo ZX 20 x .90 ?

    Has anyone tried : Ultremo ZX 20x0.90 (23-406 ETRTO) weighing 145g on the kinetix pro rims? I have a set of Kojak's 20 x 1.35's now. Is the rim to wide ? Can they be used with the lightweight tubes or must they be tubless? Thanks in advance...

  2. #2
    PatronSaintOfDiscBrakes dynaryder's Avatar
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    If your wheels are the same 14mm width as my SPTT's,then it shouldn't be a problem:
    http://www.schwalbetires.com/tech_in...dimensions#rim

    YMMV,but I wouldn't go any narrower than 1 1/8" tires;on my old Mu SL I swapped the stock 1 1/8's for 1.35" Kojaks and noticed the ride def improved. Skinny,high psi tires on a small-wheeled all alloy bike are not going to give a good ride on anything other than glass smooth roads.

    C'dale BBU('05 and '09)/Super Six/Hooligan8and 3,Kona Dew Deluxe,Novara Buzz/Safari,Surly Big Dummy,Marin Pt Reyes,Giant Defy 1,Schwinn DBX SuperSport/Qualifier,Brompton S6L,Dahon Speed Pro TT

  3. #3
    New usename ThorUSA brakemeister's Avatar
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    will work fine

  4. #4
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    Quote Originally Posted by dynaryder View Post
    If your wheels are the same 14mm width as my SPTT's,then it shouldn't be a problem:
    http://www.schwalbetires.com/tech_in...dimensions#rim

    YMMV,but I wouldn't go any narrower than 1 1/8" tires;on my old Mu SL I swapped the stock 1 1/8's for 1.35" Kojaks and noticed the ride def improved. Skinny,high psi tires on a small-wheeled all alloy bike are not going to give a good ride on anything other than glass smooth roads.
    Yup, I think that is one thing I am concerned with, the "quality of the ride". I'd hate to drop all that money to get the ultema's and not enjoy them.

  5. #5
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    The Ultremos ride really nicely for such a skinny tyre, except on bad chipseal. My lady runs them on her Moulton, so not quite the same situation as on a non-suspended bike though.

  6. #6
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    Quote Originally Posted by LWaB View Post
    The Ultremos ride really nicely for such a skinny tyre, except on bad chipseal. My lady runs them on her Moulton, so not quite the same situation as on a non-suspended bike though.
    Sorry for my ignorance LWaB, but what does chipseal? Is that another term for asphalt we use in the USA?

  7. #7
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    http://en.m.wikipedia.org/wiki/Chipseal is as good an explanation as anything.

  8. #8
    Senior Member sunburst's Avatar
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    chipseal is famous around here for ruining otherwise fine back roads. Cyclists and motorcyclists hate it. And if it's done with rough aggregate, it'll wear down your nice new tires prematurely.

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