I'm a relatively newbie to cars and i happend to get a 240Z for my first car....i've had it for one summer well half of it, it's parked now fo the winter...i've got some 195/60R 14 85H Ok now i have NO idea of what these numbers mean...can anyone help me with that? They are the yokohama or something along those lines in the brand name.. They are pretty old, and cracked, and the front i found has a really slow leak. and they suck at getting grip of the line. So can someone tellme what the numbers mean? And what kind of tires i should get for the best performance? Steering, getting grip.... anyways thanks alot.

the first number 195 is tire width

60 is the aspect ratio hiegth from side wall to the top of the tire

and the last number is the wheel diameter

you can find some decent info at www.tirerack.com

Also try searching for previous posts about tires here to find out more. FWIW, most i know choose 205/60/14 (if running 14 inch rims still). Good luck!