Tire widths for 700x28 clinchers
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  1. #1
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    Tire widths for 700x28 clinchers

    My bike came with Clement Strada LGG 700x28 (28.3mm) but I replaced one tire with a Continental Grand Race 700x28. My Continental tire did not have enough clearance causing it to rub against the frame. I was told by my local LBS that Continental's run slighter larger in width than my Clements. Didn't get a lot of wear out of my Clements. Any other options out there that do not exceed the width of my Clements? I do not want to go to 25's but I have to be careful because frame clearance is tight. Thx.

  2. #2
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    Just get yourself a gravel bike. Problem solved.
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  3. #3
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    Seems there was a thread a few years ago about tire/rim combinations and width. would be great if that was resurrected to help with these types of questions which aren't uncommon.

    What was the width of the continental you tried on your rims and why don't you want to use a 25mm?
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    xxl
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    IIRC, that old thread mentioned that tire sizes varied within makers, even year-by-year.

    Also IIRC, I thought Michelins and Vittorias ran a touch narrow. My guess is that if the OP's bike is working such close tolerances, rolling "28s" that aren't actually that big will be a trial-and-error process.

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    If you don't do any burnouts before your ride, you will get more miles from the rear tire.
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  6. #6
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    700x28 tires

    The Continental's were also 28's but my LBS told me they run a little larger than others and he has had that problem before with bikes in his shop. I want to stay with 28's for comfort.

  7. #7
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    700x28 tires

    I'll see if I can locate that older IRC site and will check out the two other brands. Thx for that info.

  8. #8
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    Quote Originally Posted by hartley1 View Post
    The Continental's were also 28's but my LBS told me they run a little larger than others and he has had that problem before with bikes in his shop. I want to stay with 28's for comfort.
    When I asked what width the continenals were, I meant the actual width not the manufacturers claimed size.

    Manufacturer marked size doesn't drive comfort really, it's the actual mounted width and volume of the tire. If you have a 25mm tire in one brand, with about the same width as another brand, you're probably not going to notice the difference.

    Something else to consider, most people overinflate tires too, dropping pressure by 5psi would likely make the difference negligible as well, or Latex tubes maybe.
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  9. #9
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    I never heard of the Conti Grand Race but I had GP 4000's in 28 that measured 31.5mm after a couple of rides. The GP 4k in 700x25 will probably get pretty close to 28 if you can still find them although the GP 5k (current version) is true to size and is a great tire.
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    Why not just get another set of Clements - now Donnelly Tires:

    https://www.donnellycycling.com/collections/road
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  11. #11
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    Quote Originally Posted by hartley1 View Post
    I do not want to go to 25's

    Tires measure what the measure regardless of what number is printed on the side.
    It makes no sense to stay away from tires with 25 printed on the side. Just like you have recently found out by using 28 and finding out they are too big you may find that 25, from certain brands, are just right.

    But if that's what you want Veloflex tires are very narrow relative to the number printed on the side and they make a 28 now.

    And it sounds like Conti 25 would be about right.

  12. #12
    dcb
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    This site has some listed and actual width info: https://www.bicyclerollingresistance...d-bike-reviews

    They measure with a 17.8mm inside diameter rim at 60 psi. So, probably lower pressure than most run with < 30mm width tires. It looks like most tires end up at 1-2mm wider than specified width at 60 psi.

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    tire width

    Unfortunately, the site you suggested doesn't have listings above 25's. Thx anyway.

  14. #14
    dcb
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    You know what I didn't even notice that. Sorry. Given the interest in wider tires now it's kinda' odd that they've stuck with 25mm and below in that segment.

  15. #15
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    Quote Originally Posted by hartley1 View Post
    Unfortunately, the site you suggested doesn't have listings above 25's. Thx anyway.
    They do have charts for touring and gravel tires too:

    https://www.bicyclerollingresistance.com/tour-reviews

    https://www.bicyclerollingresistance...gravel-reviews
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  16. #16
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    tire width

    Thx again. I'll check these out as well.

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