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Stupid Tire Question

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Cusm, Apr 17, 2001.

  1. Cusm

    Cusm 1/2 ton status

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    I currently have 275-60-15, what would the equivilant (or approx) size be in a LT tire size, if there would be one?
    I appologize for the stupid question in advanced.

    [​IMG]
     
  2. Michael

    Michael 1/2 ton status

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    I believe a 30x9.50x15 is the smallest LT tire size....it should be close.

    Michael[​IMG]
    <A target="_blank" HREF=http://www.jmartin.net/parker/goose.htm>http://www.jmartin.net/parker/goose.htm</A>
     
  3. Cusm

    Cusm 1/2 ton status

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    I don't think I worded this close to how I should/could have. I plan on going with bigger when I buy new tires, and I am trying to figure out my current ones are equilivant to. Like what 60 the relates to on width.

    [​IMG]
     
  4. Michael

    Michael 1/2 ton status

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    I beleive 275 is the how tall the tire is, 60 is the aspect ratio....basically how wide....60 being wider than 75.....go to a tire store and take a look at 'em. You might try discount tire's web site for lots of info.

    Michael[​IMG]
    <A target="_blank" HREF=http://www.jmartin.net/parker/goose.htm>http://www.jmartin.net/parker/goose.htm</A>
     
  5. N2-TRUX

    N2-TRUX 1/2 ton status

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    Let me try this...

    I'm still not sure exactly what the question is, but if I give a broad enough answer it might work. First things first. Always remember that the numbers on a tire are "advertised" size. What that means is if you take 10 different 31x10.50x15 tires from 10 different tire manufacturers, they would all be somewhere around 31" tall, and 10.50" wide. None of them would be exactly the "advertised" size. Some would be shorter, some taller, some narrower,some wider, etc. So everything you see may not be what you get.
    If any of that works for you, and you still want to know about aspect ratio's and what they mean, let me know, and I'll try to make some sense of that too. In the meantime, lets have some fun. Here are some links to tire sizing charts. They can be real entertaining, especially if you want to know more than just tire sizes...
    [​IMG]

    http://www.miata.net/garage/tirecalc.html

    <A target="_blank" HREF=http://members.aol.com/agspeed/tiresize.htm>http://members.aol.com/agspeed/tiresize.htm</A>

    <font color=purple>N2TRUX<font color=purple>
    <A target="_blank" HREF=http://n2trux.coloradok5.com/>http://n2trux.coloradok5.com/</A>
     
  6. Cusm

    Cusm 1/2 ton status

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    Re: Let me try this...

    Thanks everyone.
    N2 that first link basically got the answer I was looking for. My tires, 275/60-15 are about 28/10.8-15. I was trying to figure out what the standard size(ie 31/10.5, etc) would be on what I have, so I know what the size difference would be when I get new tires. I will probably go w/ 32's, but I did not know what width to look at.

    Michael, what did you end up on your ride?

    [​IMG]
     
  7. Michael

    Michael 1/2 ton status

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    35-12.50x15

    Michael[​IMG]
    <A target="_blank" HREF=http://www.jmartin.net/parker/goose.htm>http://www.jmartin.net/parker/goose.htm</A>
     
  8. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Re: Let me try this...

    275 is the section width of the tire in millimeters (10.82")
    60 is the aspect ratio, as in 60% of the section width is the sidewall height, in this case 6.49". If you double the sidewall height and add the rim diameter you should have the theoretical tire height, roughly 28".

    Now go measure reality...

    Rene

    [​IMG]<A target="_blank" HREF=http://jules.coloradok5.com>http://jules.coloradok5.com</A>
     
  9. Michael

    Michael 1/2 ton status

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    Yeah, that's what I meant.....[​IMG]

    Michael[​IMG]
    <A target="_blank" HREF=http://www.jmartin.net/parker/goose.htm>http://www.jmartin.net/parker/goose.htm</A>
     

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