Harley Davidson Hummer

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Harley Davidson Hummer
Production 1955
Class Naked
Air-cooled, two-stroke, single cylinder
Bore / Stroke 50.8mm x 50.8mm
Compression ratio 6.6:1
Fuel System Carburetor
Transmission Gear box: 3-Speed, manual

Final Drive: Chain

Clutch: Wet multi disc
Suspension Front: Telescopic fork
Rear: Hhardtail, spring-mounted seat
Brakes Front: Drum
Rear: Drum
Front Tire 3.25x19
Rear Tire 3.25x19
Wheelbase 50.0 inches (1270 mm)
Weight 77.0 kg (wet)
Manuals Service Manual

The Harley Davidson Hummer was a Air-cooled, two-stroke, single cylinder Naked motorcycle produced by Harley Davidson in 1955.


A 50.8mm bore x 50.8mm stroke result in a displacement of just 125.0 cubic centimeters.


The bike has a 3-Speed, manual transmission. Power was moderated via the Wet multi disc.


It came with a 3.25x19 front tire and a 3.25x19 rear tire. Stopping was achieved via Drum in the front and a Drum in the rear. The front suspension was a Telescopic fork while the rear was equipped with a Hhardtail, spring-mounted seat. The wheelbase was 50.0 inches (1270 mm) long.

1955 - 1959 Harley Davidson Hummer[edit]

1955 - 1959 Harley Davidson Hummer 1955 - 1959 Harley Davidson Hummer

The 1955 Harley Davidson Hummer sports an air-cooled, two-stroke, 125cc, single cylinder engine mated to a three-speed manual transmission and can produce 3 horsepower. It was a minimalist machine, suitable for riders who wanted a fuel-efficient, dependable and agile daily commuter. A telescopic fork, a spring-mounted solo seat, laved wheels, a 1.75-gallon fuel tank, a simple handlebar and a single exhaust pipe, are a part of the features it comes standard with.