I have never riden the little ones (pit bike) they make. Mine is underpowered, but I think my bmw 850 is underpowered. There is a big bore kit, oil cooler, over sized valves, and a carb kit. The parts are pretty cheap. I bet you could double the stock power for 500 buck or so. It's not a race bike by any means, just fun. I am going to weld some bungs on the rear and put pegs on it, like my old bmx bike. I like the fact it light, fun, and i can lay it on its side and have no worries.