[bardd]

I was wondering - what will happen if we build a robot that has wheels in different size? For example, let's say we build the frame from the kit with 8'' wheels in the middle and 6'' wheels on the sides. What will happen?
I know we'll have to adjust the gear so that they'll spin at the same speed, but then the torqe will be different. Will it be substantial? How stable will the system be?

Thanks in advance.
2212!