I am to compete in an upcoming skateboard marathon. Recently we were discussing the use of skateboard wheels and whether the circumference of the wheel had any advantage given that a larger wheel would also generally mean a heavier wheel and would require more force to push it. The skateboard community consistently utters the mantra "small wheels accelerate faster, but large wheel hold momentum better". While this may be true, given the size of a typical skate wheel, does it really matter? Or is it better to use the larger wheel which would carry more momentum and thus have a higher overall speed and would be easier to push once underway. Please excuse my lack of correct Physics terms, I have no idea how to figure this stuff out. I am here to learn. So my question is this, would it be to my advantage to use a larger wheel in a flat skateboard race of 26 miles even if the wheel was heavier. Assumptions: The course is a flat loop on asphalt. Wheel size: W1 is 90mm diameter, W2 is 97mm diameter Wheel weight: W1 is .283kg, W2 is .334kg Wheel contact patch is identical, 43mm across in both cases Wheel cores are identical material, and are 45mm diameter Wheels are made from identical durometer urethane Winner is obviously the one who crosses the finish line the fastest Assume I am a skating robot and each push stroke is the same length and force Thank you in advance for your help!