Wheel diameter does matter. A wider wheel puts the mass further away from the center, which decreases the legerage over it, and slows down a car. A wheel with a lighter overall weight can wind up acting heavier then a heavier wheel, if the lighter wheel has it's mass further from the point of rotation. The principle is the same as lifting a 10 lb weight. If you put the weight on your arm near your shoulder, it is easy to lift. Put the 10 lb weight in your hand and keep your arm straight, and it is fucking heavy! Same principle applies, except that the arm is a continuous circle. Also, gearing is affected by wheel and tyre choice. I know that Todd's gearing is different then mine (although not by a whole lot), but the rotational inertial is what kept me slower then him until now.
-=B-=

Dude, Boeing called. They want their wing back.

Dark0ne95: There is a butthole on that girl that his going to feel the wrath of 23 yeras of worldwide hate.
Me: Can I put that in my sig?
Dark0ne95: GO right fucking ahead.