if you take 2 riders of the same skill, and put them on each bike setup identically, the cub bike is gonna win every time. setup is key. you can stick a 100hp motor in a frame with a stock swinger and get spanked by a bike setup correctly with 70hp. in this case, its highly unlikely that this kid is gonna find a guy with a bike setup identical to his, except with a cub motor..most guys with cubs have them setup accordingly.. with that being said, i still say theres no way this bike is gonna hang with a cub bike, let alone one setup like it should be.