Look around, there are some guys reinforcing the rear wheel with JB Weld. There are some new J Concept wheels soon to hit the market if they haven't already. Proline would be crazy if they didn't come out with something. The way this class is taking off you will start to see aluminum wheels out of China pretty soon. I'll be honest, although I liked the way the trucks look I thought these things were just a fad until I bought and raced one. I am sure the growth is just starting and wouldn't be surprised if other manufacturers join in the party.