Harley-Davidson Model J: history, specs, pictures

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Harley-Davidson Model J
Also called Model J L20T, Model JDCA, Model JDCB, Model JD
Production 1915 - 1929
Class Road
v2, four-stroke
Bore / Stroke 84.1mm x 88.9mm
Top Speed 85 mph (136 km/h)
Horsepower 11.8 HP (8.8 KW) @ 3200RPM
Fuel System carburetor
Ignition h.d generator
Transmission Gear box: 3-speed
Final Drive: chain
Suspension Front: leading link -coil springs
Rear: rigid-
Brakes Front: expanding brake (drum brake)
Rear: expanding brake (drum brake)
Front Tire 3-26
Rear Tire 3-26
Weight 399.04 pounds (181.0 Kg) (dry),
Manuals Service Manual

The Harley-Davidson Model J was a v2, four-stroke Road motorcycle produced by Harley-Davidson between 1915 and 1929. It could reach a top speed of 85 mph (136 km/h). Claimed horsepower was 11.8 HP (8.8 KW) @ 3200 RPM.

Engine[edit | edit source]

A 84.1mm bore x 88.9mm stroke result in a displacement of just 989.0 cubic centimeters.

Drive[edit | edit source]

The bike has a 3-speed transmission.

Chassis[edit | edit source]

It came with a 3-26 front tire and a 3-26 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 leading link -coil springs while the rear was equipped with a rigid-. The bike weighed just 399.04 pounds (181.0 Kg).

1920[edit | edit source]

In Media[edit | edit source]