www.BikeWearWorld.com interviewed Sheena, Brett Metcalfe\'s girlfriend on Brett\'s pre-race superstitions and boxer or briefs. Metcalfe raced AMA Motocross nationals at Glen Helen Parkway #123. 250, ama, bike, Bikewearworld.com, brett, clothes, dungey, kawasaki, lites, metcalfe, motocross, nationals, ryan