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  1. #1
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    Another rim size/tire size question (Ukai 26x2.125)

    I have a set of pristine wheels from the early 80's with Ukai 26x2.125 rims. They look very similar to the rims on this Ritchey (thanks First Flight)

    http://www.firstflightbikes.com/1981_Ritchey.htm


    I want to install slicks or semi-slicks on the rims for street/road riding. The largest slicks/semi-slicks I have found so far in Japan are 26x2.00. Will that size tire fit those rims or do I have to use 26x2.125 tires or larger.

    Just looking for a little input before I head off to the LBS this weekend.

    Thanks.
    Last edited by caintuck; 06-24-10 at 03:42 AM. Reason: To provide good link

  2. #2
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    They would fit but you would probably be better with 26X1,5. 26X1.25 would be too small. The inside width between sidewalls determines the width tires you can run. 1.5 to 2 times that width will fit. A table near the bottom of this page gives more details http://www.sheldonbrown.com/tire-sizing.html

  3. #3
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    AndrewP, thanks. I've alreadey read that article and looked over that chart, which is the reason for my question. Sheldon warns about putting a narrow tire on a wide rim, and I was wondering whether 26x2.00 tires would be too narrow. Seems like they wouldn't be, but I just don't know. Are you sure I'd be better with 26x1.5 tires on 26x2.125 rims; 26x1.5 tires would seem be a little too narrow to me. The inner rim width of my rims, measured very inexactly with s metal tape measure, is approximately 28 mm.

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