We just got back from the 7th round of the Western 4 Stroke Nationals that were held at the Albany Oregon supercross track. All I can say is WOW, THOSE GUYS ARE FAST. . If you missed it then you missed a real treat. To see how our Thumper can perform with a pro on board will make your jaw drop. Hey... Even my wife, who is not a rider, was totaly impressd with these guys. If you ever get a chance to watch these riders in action you won't be sorry. Look up there web sight http://www.4strokenationals.com and find out if there comming to a track near you. This was the best $12.00 I've spent in a long time. . Enjoy.