Walt Moss builds custom vehicles out of the spare parts from his trucking ... His first build was a motorcycle with a semi tire. He also built the Rat Truck. The hood is 11-feet-long.

Narrator: This motorcycle is made from semitruck parts. It's called Tower Trike ... It's powered by a 320-horsepower semi engine and reaches up to 85 miles per hour. Jim: It won't keep up with ...