Two wheels instead of four will be featured at the Knoxville Raceway this weekend as the A-M-A Grand National Flat Track Motorcycles invade the half mile. One of the riders, Jared Mees, is currently the points leader in the Expert Twins class. Mees says while the bikes have half of wheels of a sprint car ,the bikes like a sprint car are all hand built. Mees has three wins on the season, with the most recent coming on June 11th at Hartford, Michigan. The weekend gets started with a vintage bike show Friday night, and then Saturday will get started at 3:30 with practice and qualifying.