[ksafin]

we're using 10" pneumatics from harbor freight. They are our two front drive wheels and we have 2 casters on the back of the robot.

it turns pretty well, but that's all due to the casters.

If it was 4 pneumatics I can't say I know what would happen.

However, we had a team member sit on the robot and we noticed it drives much better under weight (the tires get more contact in the floor when pressed down).

I'd also suggest wearing them out a bit so the tread is flatter and, again, gets more contact with the floor.