Like quadjunkies stated above, the new extreme paddles are a much better choice than the old style haulers, they have the same size paddles, only they are a tad thicker, much better holeshot because they do not flex under power like the haulers can and do. 20x10x10 9 paddle extremes and a 38 tooth rear sprocket are an excellent choice for a stock predator, with a pipe and some airbox mods, the stock gearing works great.