Hercules 317: history, specs, pictures

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Hercules 317
Manufacturer
Production 1953 - 1956
Engine
single cylinder, two-stroke
Bore / Stroke 62.0mm x 66.0mm
Top Speed 59 mph (95 km/h)
Horsepower 10.73 HP (8.0 KW) @ 5000RPM
Fuel System carburetor
Transmission Final Drive: chain
Suspension Front: telescopic
Brakes Front: expanding brake (drum brake)
Rear: expanding brake (drum brake)
Front Tire 3-19
Rear Tire 3-19
Weight 264.55 pounds (120.0 Kg) (dry),
Fuel Capacity 3.43 Gallon (13.00 Liters)
Manuals Service Manual


The Hercules 317 was a single cylinder, two-stroke standard produced by Hercules between 1953 and 1956. It could reach a top speed of 59 mph (95 km/h). Claimed horsepower was 10.73 HP (8.0 KW) @ 5000 RPM.

Engine[edit | edit source]

The engine was a air cooled single cylinder, two-stroke. A 62.0mm bore x 66.0mm stroke result in a displacement of just 197.0 cubic centimeters.

Chassis[edit | edit source]

It came with a 3-19 front tire and a 3-19 rear tire. Stopping was achieved via expanding brake (drum brake) in the front and a expanding brake (drum brake) in the rear. The 317 was fitted with a 3.43 Gallon (13.00 Liters) fuel tank. The bike weighed just 264.55 pounds (120.0 Kg).