Simplex Automatic: history, specs, pictures
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| Simplex Automatic | |
| Manufacturer | |
|---|---|
| Production | 1942 - 1960 |
| Engine | single cylinder, two-stroke |
| Bore / Stroke | 50.8mm x 64.3mm |
| Horsepower | 3.89 HP (2.9 KW) @ 5000RPM |
| Fuel System | carburetor |
| Ignition | magneto |
| Transmission | Final Drive: belt Clutch: variable speed automatic |
| Suspension | Front: leading link Rear: rigid |
| Brakes | Rear: expanding brake (drum brake) |
| Front Tire | 2.50-26 |
| Rear Tire | 2.50-26 |
| Wheelbase | 47.01 inches (1194 mm) |
| Weight | 134.92 pounds (61.2 Kg) (dry), |
| Fuel Capacity | 2.5 Gallon (9.46 Liters) |
| Manuals | Service Manual |
The Simplex Automatic was a single cylinder, two-stroke standard produced by Simplex between 1942 and 1960. Claimed horsepower was 3.89 HP (2.9 KW) @ 5000 RPM.
Engine
A 50.8mm bore x 64.3mm stroke result in a displacement of just 130.0 cubic centimeters. Fuel was supplied via a overhead valves (ohv).
Drive
Power was moderated via the variable speed automatic.
Chassis
It came with a 2.50-26 front tire and a 2.50-26 rear tire. The front suspension was a leading link while the rear was equipped with a rigid. The Automatic was fitted with a 2.5 Gallon (9.46 Liters) fuel tank. The bike weighed just 134.92 pounds (61.2 Kg). The wheelbase was 47.01 inches (1194 mm) long.