Early CZ Autocycles.

The CZ company was established in 1919 manufacturing guns, CZ stands for Česk Zbrojovk, Czech arms factory.  They moved into making bicycles and then, in 1932, motorcycles. The first model, the CZ 76, was a normal mens bicycle with a 76cc two stroke engine mounted on modified front forks almost at wheel spindle level.  The fuel tank was set immediately in front of the steering head and above the mudguard. Altogether an ungainly looking device and very much too heavy in the front.
The second attempt, the Kaktus, was a much better machine. It was the same 76cc capacity but with the engine in a more conventional position inside the frame.  The frame was still based on bicycle construction but with the addition of sprung, leading link, front forks. The Kaktus was the first serial production CZ motorcycle with a total of 476 being made..

CYCLE WITH AUXILIARY MOTOR
Year:  1932
Engine: single cylinder two-stroke 76cc (48x42)
Ignition:  Robert Bosch flywheel magneto.
Power: 1.5 HP
Carburettor: GRAETZIN
Curb weight: 30 kg    (66 lbs)
Maximum speed: 30 km / h.   (19 mph)
Consumption: 1.5 lt / 100 km    (188 mpg)
A historical accomplishment of the Strakonice designers was to connect a motor to a bicycle. The demands of today's pampered enthusiasts of two wheeled vehicles would not be impressed by the ancestor of CZ motorcycles.  It had no speed, gears or clutch, rode slowly, screaming horribly and was very uncomfortable to ride.

This data is from an official CZ factory booklet:
70 Years of CZ  1919 1989
(section 1930 - 1940)

Left is for the first bike, above. Right is for the Kaktus, below.

MOTOR BIKE ČZ 76 - "KAKTUS"
Year:  1932-1933
Engine: single cylinder two-stroke 76cc (48x42)
Ignition:  CZ flywheel magneto.
Power: 1.5 HP
Carburettor: GRAETZIN
Without gearbox.
Curb weight: 40 kg    (88 lbs)
Maximum speed: 35 km / h.   (22 mph)
Consumption: 1.5 lt / 100 km    (188 mpg)
Chassis: simple tubular frame, leading link forks with short swingarms and coil springs.
This was the first serial production type.
The KAKTUS (cactus) nickname originated from the shape of the cylinder fins (non-removable head).
The design of all motorcycles of the thirties came from the designer V. Pavl
čka and his team.

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