wheel size?, how to tell Options

[gnetik]

I lowered my car 1.5 inches in the back with eibach springs and 1.75 inches in the front with intrax springs. I want to get 17 inch rims. What size tire should i get to have at least .75 to 1 inch between the fender and the tire? Also, how do you read the sizings of the tire( like 215/40/18, what do the numbers mean)? Pls, any help is always praised upon. Thanks for reading!

[Hanyo]

the first set of numbers is the tires widness. the second set of numbers is the tires side wall height, and the last set of numbers is the rim size.

i can't offer any help on the right tires for you since i dont own any aftermarket rims. But the thinner the tire wall (like 30-35) will make the ride quality worse because it will not obsorb as much of the roads bumps.