Josh Graham and Jason McMillin do some experimenting with dirt tires on their stunt bikes during Dirty Turtle Offroad’s annual Boo Bash weekend! As you may be able to tell from some of the video it was certainly a huge challenge to learn how the bikes would react with knobby tires on a whole new terrain. They start off with some stunt riding, a little drifting, and then head to the motocross track for some high speed fun!