Engine type: Air-cooled 36 cc 2-stroke. 1 hp/ 4.000 rpm.
In 1953 a new model, the "Diamond Free" was introduced. This was built on very similar lines to the Power Free and used the same method on transmission. The engine capacity was now 58cc (43mm x 40mm); neat alloy side panels tidied up the unit's appearance. Power output was 2 bhp at 4000 rpm.
Suzuki Jidosha Kogyo ”Diamond Free” sketch and engine prototype. Presented in 1953.
There were many detail variations during the production of these cycle motors, particularly in the design of the fuel tank, chain covers and exhaust system, Additionally, a variety of special frames was available, incorporating such features as drum brakes, strengthened or sprung forks, and even crash bars.
The Diamond Free had the usual handlebar controls: a lever operated clutch, a thumb lever for the choke, and a throttle twist-grip. The two-speed gearbox was controlled by a lever mounted on the frame's seat tube.