Quick Tire Size Question
Hey guys. Quick newbie question. What do the first 2 numbers in a tire's size mean? Does it go width/sidewall height/rim size?
If I'm going to buy a set of rims with 235/40/17 tire on them, would it be unwise of me to put 205/40/17 tires on?
I'm asking cuz the tires that come with the rims don't have much tread left, and there's someone selling 205/40/17's for a good price.
My Ride: E36 318 Convertible - Black Ext. Peanutbutter Int.