Quote:
Originally Posted by stovt001
Smaller wheels allow for taller sidewall tires (assuming overall diameter remains constant). Taller sidewalls allow more flex. There is more rubber between road imperfections and the rigid wheel.
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What he said. More rubber on the ground (with air let out...20psi or so) helps in traction for 1/4 mile racing. Imagine letting some air out of a 28 inch tire on a 22 inch rim. Not too much rubber on the ground. But, now add 4 more inches of tire by going w/ an 18 inch rim. Go back down to that same 20 psi. More rubber on the ground.