[Grandpa]

Originally Posted by DirtyD No, just no. His wheels weight as much as your stock 18s do. The only thing Steve would be lacking in would be cornering ability as his sidewall is much shorter than yours, but it would be made up by the fact his tires have a full 2-3 inches more surface contact to the pavement than your 18s have. rotating mass > static/unsprung (dead) mass all day long.

Exactly.

Originally Posted by re-rx7 I know. Had my civic on stock 15's then decided to go to 17's. I didnt notice it when i went up to the 17's but when I went back to 15's HOLY SHIT! The difference was huge. Granted with the lower power output of the civic the difference would be greater but the same should hold true on a more powerful car no matter. Why make skinny wheels if there is not a need and they do not make a differnce? Plus the contact patch of the wider tires creates more friction on the surface of the road. This also soaks up some power. Take a wheel barrow put a skinny tire on say a 235 and push it. Then put a 275 or 295 on there and see if there is a difference in effort to push it.

Just...stop.