It's unbeliveably hard for a poor guy to find a correct sized tire around here. There are plenty of junkyards and second hand tire shops who'd love to give me a mounted and balanced tire with decent tread for under 40 bucks, but no one can find a 235/60/15 unless I went to the second hand muscle car specialty shop downtown, but they only sell tires that are pre mounted on rallye wheels, and well, I don't have the 300 bucks for that.

Now I know 235/60/15 isn't OEM correct for my car, a base 81, but it will match my other rear tire and help keep the mufflers off the ground, I only need one tire and the idiot before me wanted side exit exhaust and no matter how I hang the exhaust they scrape.

Anywho, since I suck at math as much as the locally ran second hand tire shops around here, does anyone know of different tire sizes that'll fit a 15 inch wheel but will have similar overall diamater? 225-215/70/15 maybe? All I know is that the middle number is a percentage of the width, which is the first number in mm and obvisouly the last number is wheel diamater.

I might not reply for a while, going into surgery a few hours away tomorrow, so thanks in advance for any replies!

I just want this car to make it through winter, bald tires are bad.

 

First number is the width of the tread, and the second number is the width of the sidewall. If you want the same tire diameter, just get a tire that matches the last two numbers and you'll be fine.

 

the second number is a percentage of the first, so if no one can find the same width in my area, and i have to get a different width, the second number would have to change to keep the proper overall diamater, that is the entire problem. but since i'm not sure if 70 percent of a 215 wide tire is the same diamater as 60 percent of a 235 tire, i dunno what i'm gonna do.

example: 235/60/15 is not the same tallness/diamater as 195/60/15

I wish it was as simple as the second number being an actual measurement, like 60=60mm but unfortunately it's not. The first number will always be mm, and the last will always be inches, but the middle will always rely on the first.

 

Go to www.tirerack.com and look up different tire sizes. They give all the tire's specs.

 

Or just go out to your car and measure the overall height of your tires, then go to the tire shop and measure what they have, and buy what matches in height and width.

 

i found a site via much googling i can't remember what it was now with all the anesthisia running through my system, tires101 i think.

but i ended up getting a 215/65/15 because the diamater was only off by one tenth of an inch and that paticular size is much more common than my 235/60/15.