Originally posted by "Someone"
Originally posted by stangerang
well---if you go up an inch in rim size all you have to do is go down an inch in profile and you will have the same overall diameter and nothing will change
True to an extent. It comes down to what John said about moment of inertia and getting the object moving. When the wheel gets larger and the tire gets smaller the location of the tires weight is farther from the center of rotation which makes it harder to start the spinning. Since tires tend to weigh more per square inch than wheels. Tires tend to weigh more as their profile gets shorts because of thicker sidewalls. Another analogy: You have a barbell with a 10lb weight at the far ends. Then you slide the same weights to the center. Which is easier to rotate with your hand in the dead center?
Besides 13 steelies on the front with stock 185/70/13s look so much damn racier!