2.75" diameter tractor wheel with internal hub for a servo wheel.

I wanted a good, heavy duty wheel for my servo powered robot. I needed tread like a tractor for moving it in soft soil or on carpet. I built in a .82" socket to receive and center a round, standard size servo wheel with four screw holes and a wide center hole for the servo axel screw. This wheel is sturdy and good looking in a kind of old tractor tire look. It has 30 chevron cleats for good traction and would fit most two wheel with third wheel trailing robot platforms.