A virtual tour of the classic motorcycle collection on display at the Barber Vintage Motorsports Museum in Leeds, Ala.
Engine: Air-cooled, inline 4-cylinder, 4-stroke
Power rating: 30bhp (estimated)
Bore x stroke: 2-3/4in x 3-1/4in
Valves: Overhead inlet, side exhaust
Fuel system: Schebler carburetor
Transmission: 3-speed, hand shift
Suspension: Front trailing link with leaf spring, rigid rear
Brakes: Front and rear drum
Top speed: 75mph
Indian Fours were known as the Duesenbergs of motorcycling, and were produced from 1927 to 1942. Smooth and powerful, these machines could be cruised at 70mph for hours. A 1930s ultimate touring machine, it was the Honda Gold Wing of its time.