Harley-Davidson Hummer: history, specs, pictures

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  • Scat 125 cc


1950 Harley-Davidson Hummer in Red
1950 Harley-Davidson Hummer in Red
1950 Harley-Davidson Hummer in Red
1950 Harley-Davidson Hummer in Red

See Also[edit]

Harley-Davidson Hummer
Production 1955 - 1959
Class Road
single cylinder, two-stroke
Bore / Stroke 52.0mm x 58.0mm
Top Speed 50 mph (80 km/h)
Fuel System carburetor
Ignition magneto
Battery 6.6:1
Suspension Front: girder-rubber springs
Rear: rigid
Brakes Front: expanding brake (drum brake)
Rear: expanding brake (drum brake)
Front Tire 3.25-19
Rear Tire 3.25-19
Wheelbase 51.18 inches (1300 mm)
Weight 169.98 pounds (77.1 Kg) (dry),
Fuel Capacity 1.74 Gallon (6.60 Liters)
Manuals Service Manual

The Harley-Davidson Hummer was a single cylinder, two-stroke Road motorcycle produced by Harley-Davidson between 1955 and 1959. It could reach a top speed of 50 mph (80 km/h).


A 52.0mm bore x 58.0mm stroke result in a displacement of just 125.0 cubic centimeters.


It came with a 3.25-19 front tire and a 3.25-19 rear tire. Stopping was achieved via expanding brake (drum brake) in the front and a expanding brake (drum brake) in the rear. The front suspension was a girder-rubber springs while the rear was equipped with a rigid. The Hummer was fitted with a 1.74 Gallon (6.60 Liters) fuel tank. The bike weighed just 169.98 pounds (77.1 Kg). The wheelbase was 51.18 inches (1300 mm) long.

In Media[edit]