Browse Listings

Vintage Motorcycles, Bikes, Scooters & Parts

1953-60 Simplex Motor Cycle

Price: $9,000.00

Listing Contact:

Dan and Natasha Glasser

Request Info:

Please fill out the form below should you have any questions:



1953- 60 Simplex Service Motor Cycle

Being sold by:

American Armoured Foundation, Inc.
3401 US Highway 29,
Danville, VA  24540
Call:434-836-5323  FAX: 434-836-3532

Cycle is currently on displaty at the Armor Musuem in Danville, VA



Simplex was founded by Paul Treen (father of United States Congressman and Louisiana Governor David Conner Treen) in New Orleans, Louisiana in the late 1920s with an initial investment of $25. Treen had been a dealer in Harley-Davidson motorcycles and had pitched them the idea of making a lightweight motorcycle for young riders.

When Harley-Davidson rejected the idea, Treen decided to enter the market himself and designed his Servi-Cycle. The Simplex Servi-Cycle was introduced in 1935.

Although Simplex Manufacturing Corporation produced motorcycles for over 20 years, the last Simplex Automatics looked almost the same as the company's original 1935 Simplex Servi-Cycle motorcycle. Paul Treen would often visit the factory's tool shop and work with the engineers on new ideas himself, result in continuous improvements to Simplex products instead of annual new model introductions.

Western Auto sold Simplex motorcycles under the Wizard brand in the mid-1950s.
Simplex's minimalist philosophy was maintained throughout the company's history, whose designs changed little after 1935.

 Simplex continued to make minibikes and karts using proprietary small engines until 1975, when Simplex went out of business. Treen had sold the company three years earlier.

A 1935 Simplex Servi-Cycle motorcycle is currently on display in the Smithsonian Institution's America on the Move exhibit.


The two-stroke engine had a rotary valve and an "overhung" crankshaft with only one main bearing. A kick-starter was added by 1953.
The Servi-Cycle was claimed to have a fuel economy of 100 mpg-US (120 mpg-imp; 2.4 L/100 km).

The Servi-Cycle used a magneto of Simplex's own design, providing 6 volt electricity for the dual ignition and for the headlight, taillight and stoplight. The engine had dual spark plugs in its cylinder head

The original Servi-Cycle design had the engine drive the rear wheel by belt, with no transmission or clutch, requiring the engine to be shut off while the cycle is at rest. In 1941, a pedal-operated clutch was added.

Source Wikipedia