The 1933 Zbrojovka Brno Z4 I. serie had a water cooled two-stroke engine of 905 cc which produced a maximum power of 19 hp. Maximum speed is 80 kilometres per hour.<gallery>Image:Zbrojovka Brno Z4 I. serie front.jpg|Zbrojovka Brno Z4 I. serieImage:Zbrojovka Brno Z4 I. serie side.jpg|Zbrojovka Brno Z4 I. serieImage:Zbrojovka Brno Z4 I. serie back.jpg|Zbrojovka Brno Z4 I. serieImage:Zbrojovka Brno Z4 I. serie top.jpg|Zbrojovka Brno Z4 I. serie</gallery>
The 1936 Zbrojovka Brno Z4 V. serie had a water cooled two-stroke engine of 980 cc with an output of 25 hp. Maximum speed is 100 kilometres per hour.<gallery>Image:Zbrojovka Brno Z4 V. serie front.jpg|Zbrojovka Brno Z4 V. serieImage:Zbrojovka Brno Z4 V. serie side.jpg|Zbrojovka Brno Z4 V. serie</gallery>