The Dubble Trubble, built in 1953 by legendary racer Bud Hare, was a beastly Triumph twin-engined motorcycle that dominated the drag strips during the 1950s with a top speed of 142.38 mph. The dual 40 cu. in. displacement engines were fed through a Harley-Davidson hand-shift gearbox with foot clutch. Only two gears are used– second and high. Totally sick.