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Old 06-23-10, 09:58 PM   #1
caintuck
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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 02:42 AM. Reason: To provide good link
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Old 06-23-10, 10:14 PM   #2
AndrewP
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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
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Old 06-24-10, 12:43 AM   #3
caintuck
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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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