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Old 05-03-10, 11:04 AM   #1
ClarkinHawaii 
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700x28 tire height dimension??

OK, on a vanilla road bike I am running 700x28 Schwalbe Marathon "Kevlar Guard" tires. They fit fine although need to be deflated to get past brakes--no problem.

Since avoiding flats is #1 priority, I ordered a set of Marathon Plus "Smart Guard" also in 700x28. Oops--they fit ok width-wise, but the built-up belt causes the tire to rub against the back of the center post and the arch of the fork and seat stay bridge.

To save $$ I order tires from Europe, so the "try and see" sizing guide doesn't work.

Does anybody know of a site that shows actual inflated dimensions of bike tires?

I'd like to try Conti gator skins and/or Specialized Armadillos, but who knows if they'd fit?
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Old 05-03-10, 11:58 AM   #2
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Wallbike.com has the info you want, provided by customers as well as shop measurements, for some tires IIRC. It may be only for Schwalbe tires though.

Based on my own experience the Ribmo tires and Schwalbe Marathon Plus tires are both larger diameter than most due to carcass thickness for puncture protection. The Armadillos are a more normal thickness tire.
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Old 05-03-10, 08:07 PM   #3
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Originally Posted by tatfiend View Post
Wallbike.com has the info you want, provided by customers as well as shop measurements, for some tires IIRC. It may be only for Schwalbe tires though.

Based on my own experience the Ribmo tires and Schwalbe Marathon Plus tires are both larger diameter than most due to carcass thickness for puncture protection. The Armadillos are a more normal thickness tire.
Wall is working on it, but just started. Anything else? Also, it occurred to me that the wideness of the rim would effect how high the tire sticks up above the rim, no?
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Old 05-03-10, 09:06 PM   #4
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Yep, I'd imagine rim width would have an effect on the profile. It's tough to find road bikes that'll fit most 28s. I doubt there's a 28 that will fit in my fork. 25s are pretty nice for me, however.
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Old 05-04-10, 09:22 AM   #5
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Wall is working on it, but just started. Anything else? Also, it occurred to me that the wideness of the rim would effect how high the tire sticks up above the rim, no?
Of course.

The distance from one bead, around the tread to the opposite bead is a constant. If you move the two tire beads farther apart as if they were on a wider rim, the height of the tread has to come down.
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Old 05-04-10, 09:47 AM   #6
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Of course.

The distance from one bead, around the tread to the opposite bead is a constant. If you move the two tire beads farther apart as if they were on a wider rim, the height of the tread has to come down.
Good thinking--so the information I want is rim-dependent with as many variations as there are different rim widths. Hell, I knew that--just checking to see if you guys were alert!
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