[LeRoy]

Just though I'd chime in here. Forget about the 50 CC quads. He'll just outgrow it to fast. I personally like the LT80 made by Suzuki. It's got plenty of spunk to be fun on, at my weight 230lbs. but the girl at 8 and the boy at 5, have a good time on it to. As for aftermarket, the skies the limit on them, too. I'm building another one that's going to be "Built" that the girl will graduate to. The bigger quads are just to large in size for them to handle. Not so much the power but weight, control locations ect. A buddy of mine is thinking of selling his 90CC and 50CC E-TON quads if your interested. Might be worth the shipping amount. I'll ask him for some prices