A piece of advice:
I tried the Albion/Coleson caster wheels, the bearings can't handle the lateral load and melt their way out of the wheels, and as a drive wheel the rubber is too soft and I wore off over 1/2" in 2 races.
Its amazing how critical tires and wheels are in power wheels racing, look for something hard and strong.
Oh, yea... Bring spares
Tom