The original tire size would be 185/70/13, or even 175/70/13. I bought a pair of sumitomo tires from tire rack, hr rated, 195/60/13. These changed the geomtry of the wheels a bit (2% on speedo), BUT THEY ARE AWESOME AND CHEAP.... $41 each. They look great, and are very high performance summer only tire. I do think you could even go to 205/60/13...I see some people have, but I do not know if this would look weird, or hit the fender on occasion. The 195's look great are improve handling.