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  1. #1
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    Narrow Tires with Wide Rims

    Would you have concerns running a 25mm clincher tire with a rim that has 23mm internal width? I have plenty of room for much larger tires on the frame, but not so sure about this tire and rim width working well together. Any performance anomalies to expect?
    Gravel Rocks

    Trek Domane
    Niner RLT9 (Gravel Bike)
    Trek Crockett

  2. #2
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    According to DT Swiss, a 20mm internal width rim is as wide as you should go with a 25mm tire:

    https://dycteyr72g97f.cloudfront.net...WEB_ZZ_001.pdf
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  3. #3
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    Thanks, kind of what I thought - might be able to use a 32mm on the lower end, but not a typical road tire.
    Gravel Rocks

    Trek Domane
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    Trek Crockett

  4. #4
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    If you're looking for a road tire in 32mm take a look at the Compass offerings, I've found them to be fast and good riding.
    Too old to ride plastic

  5. #5
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    Quote Originally Posted by velodog View Post
    If you're looking for a road tire in 32mm take a look at the Compass offerings, I've found them to be fast and good riding.
    Thanks, are you riding the standard or extra light? Looks like the tubeless options start at 35mm which might be a better option with the Extra Light versions.
    Gravel Rocks

    Trek Domane
    Niner RLT9 (Gravel Bike)
    Trek Crockett

  6. #6
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    Quote Originally Posted by Srode View Post
    Thanks, are you riding the standard or extra light? Looks like the tubeless options start at 35mm which might be a better option with the Extra Light versions.
    I've been riding the standards, I'm afraid to try the ultralights as I'm sure that I wouldn't go back to the standards. Price conscience and all that.

    I'm running 42's and my wife has the 32's and we're both happy with them.
    Too old to ride plastic

  7. #7
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    Quote Originally Posted by velodog View Post
    I've been riding the standards, I'm afraid to try the ultralights as I'm sure that I wouldn't go back to the standards. Price conscience and all that.

    I'm running 42's and my wife has the 32's and we're both happy with them.
    I've been shopping online - the Panaracer gravel king is half the price almost of the comparable Compass tires in standard casing - do you get your Compass tires direct from them? I can't find anyone else that sells them really.
    Gravel Rocks

    Trek Domane
    Niner RLT9 (Gravel Bike)
    Trek Crockett

  8. #8
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    Quote Originally Posted by Srode View Post
    I've been shopping online - the Panaracer gravel king is half the price almost of the comparable Compass tires in standard casing - do you get your Compass tires direct from them? I can't find anyone else that sells them really.
    I've bought them both ways, but mostly thru a shop. A shop owning friend of mine set up an account with Compass and I threw my business his way.

    I've never tried the Panaracer's so can't comment on how they ride. They have a protective belt so may be a bit stiffer than the Compass, with no belt, but that's just speculation on my part. I've heard no rap against the Gravel Kings, and if flat protection with a file thread is what is wanted, they may be just the ticket.
    But saying that I will also say that I have put about 16,200 miles on Compass 650bx42mm BSP tires and have only had one flat. I don't know how many tires that has been, but I did ride one for 8000miles, replacing it when I saw cord. That was 4000 miles on the front with the rest on the rear. It was actually about 20 miles short of the full 8000, and I pushed it as far as I dared, just to see what I could expect out of the tires thru their life. This was not the tire that I got the flat on.
    Too old to ride plastic

  9. #9
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    Quote Originally Posted by Srode View Post
    I've been shopping online - the Panaracer gravel king is half the price almost of the comparable Compass tires in standard casing - do you get your Compass tires direct from them? I can't find anyone else that sells them really.
    Recognize that the Compass tires were designed with easy rolling high compliance casings as the goal. Unlikely that the Panaracer rolls as well, but whether it is worth the extra cost is something only you can decide.

  10. #10
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    Quote Originally Posted by Kerry Irons View Post
    Recognize that the Compass tires were designed with easy rolling high compliance casings as the goal. Unlikely that the Panaracer rolls as well, but whether it is worth the extra cost is something only you can decide.
    Well, I'm going to try the Compass out in the 35mm tires and see how they roll. It would be fun to be able to keep up with the weekend roadie group ride using my gravel bike with somewhat fat tires. The Compass 38s get pretty heavy. So now it's a question of their light or standard in the 35's
    Gravel Rocks

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    Niner RLT9 (Gravel Bike)
    Trek Crockett

  11. #11
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    I run the 32mm gravelkings and I'd say they're ok.

    Additionally, fwiw, I have HED Jet6 black which have an internal width of 21mm and run 25s on them. HED recommends 23-58mm tires.

  12. #12
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    28mm GP4000SII are reported to be very wide on wider rims, maybe almost 32mm, perhaps even more on your wide rims.



    I have HED Ardennes+ wheels. they are 20.5 mm internal width, and are tubeless ready. The beads on my tubed, standard tires, GP4000SII, snap into place with a pop when first inflated after changing tires.

    I ran 23mm GP4000SII for a few years, and it worked great. They measured 26.5 mm on the 25mm outside width rims. Handling was fine.

    But 25mm GP4000SII are only 20 grams heavier, and they measure 29mm on these rims. So I've been using 25mm this year. I can drop the pressures to a 29/30mm equivalent, about 65-70 psi front, 80-85 psi rear. A very smooth ride, and it corners just as well.


    I'm a little more confident with tubeless rims for these narrow tires. When I got a flat, the beads stayed locked into the rim. I have no worries about beads pulling loose while riding.

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