Wheel Spacing for Duals

[NibbanaFarm]

Does anybody know how far apart dual wheels should be? I want to mount dual wheels on my BCS two wheel tractor. It has very small 5 X 10 X 20 inch high Ag tires.

BCS has a video on the setup and it looks like the tires are one or two centimeters apart at the closest point. They sell wheel spacers for the setup but they are very expensive so I would like to make my own.

Thanks.
Nibbana

 

[loggin]

I would think that as long as you make the spacer thick enough so that the sidewalls of the tires don't touch each other at your usual low tire pressure you should be fine. If the sidewalls make contact to each other they will wear out prematurely.