Wheels: I could not bring myself to pay the freight on the nicer Tetra wheels so I found a solution I was happy with. I first tried Dave Brown Lite Flight wheels and they were a total bust. WAY too soft. Looked like flat tires on a car. I purchased some Dubro Lite Wheels and modified them to my liking. See the pictures. The Diamond Tread ones are a little more money but have bigger hubs which I liked. I bought 2-1/2" wheels and sanding them down to fit and have the shape I wanted.