The chassis is made of 1" square 4130 chromoly tubing, covered by 1/8" thick 304 Stainless steel. Rear cover is 5052-H32 (but should have been 6061-T6). The go-kart racing rain tires tires are foam filled and mounted on alloy
racing wheels, which are driven directly by Quickie P200 wheel chair motors. Top speed 10 mph. It WILL flip over if you charge off the line too fast. Two side plates are mounted at the blunt front for pushing balls and traffic
cones around at Botbash. The entire sequence of building this bot is on the web site.