1953 Simplex 125cc Automatic
Engine no. M15359B
One of the great American success stories that was never heralded within the motorcycle industry was that of the diminutive Simplex Servi-Cycle. Born
during the Great Depression in 1935 when many industries failed, the company flourished, and even survived through World War II. Twenty five years after the innovative Joseph Paul Treen entered the market with a lightweight two-cycle powered motorcycle, the Simplex story ended when the market trended towards
mini-bikes and go-karts.
The 1953 Simplex 125 represents a significant period of the model development. The prior year, the motorcycle gained a ratchet rocker which enabled the rider to choose from three distinct speed ratios. This new "M" series Simplex ushered in the automatic era with a new automatic variable speed clutch allowing easy riding up to speeds of 45 mph. The engine featured advanced rotary valve fuel induction while the chassis featured new twin caps on the gas tank, a modern round tail and brake light, plus key ignition. The new "M" series continued until the final days of the Simplex in 1960.
This Simplex powercycle received an exhaustive restoration, including a complete engine overhaul, while many chassis parts were replaced. There are only five miles on this excellent motorcycle since restoration.