tire numbers and their meanings.

[Richard Cheese]

there are three numbers on the tire sizes for the metrics...

xxx/yy/zz

here is my understanding of them

xxx= the width of the tread

yy= the aspect ratio...or the percent of the width that the sidewall is tall from the rim to the tread

zz= the rim size

my friend is of the opinion that the xxx is how tall the tire is, where the yy is how wide it is

who is right?

[wingnut]

your right cheese. Have him go to tires.com if he doesn't believe you.

[mineurbiz]

your right cheese. Have him go to tires.com if he doesn't believe you.

^^^ what he said!!!

[offroadracer]

[ntrsandman]

Now, if you have a big offroad tire, like a 31 10.50 15, then, I would say your buddy is correct. 31 inches tall, 10 1/2 inches wide, 15 inch diameter. You both are correct. Depending on what tires you are discussing.

[mineurbiz]

Now, if you have a big offroad tire, like a 31 10.50 15, then, I would say your buddy is correct. 31 inches tall, 10 1/2 inches wide, 15 inch diameter. You both are correct. Depending on what tires you are discussing.

I have 286/65/R18 which is 32.5/10.5/R18 So maybe we should say when using the metric system?

[Richard Cheese]

they were the 285/70/16's he was referring to...so it was metric

i knew i was right...i just wanted someone else to agree with me...point him to this thread, and laugh

thanks guys

[BudlightBob]

I understand this but, if it is metric why is the rim size in inches still?

[Richard Cheese]

exactly

[wingnut]

Tweetely doo!!!!

[Richard Cheese]

Tweetely doo!!!!

Yer slippin Craig....not ONE smiley....im going to have to write you a ticket for not adhering to post whore regulations