KNOB ENGINES s.r.o. is the R&D company which has developed unique patented Birotary engine
PATENTED BIROTARY ENGINE Gasoline three-cylinder engine, power 115 HP, displacement 750 cc, diameter 37 cm, length 47 cm, dry weight 68 kg with 20% lightening potential (in 2020); specific power 1,7 HP/kg with potential to achieve 2,1 HP/kg (in 2020). The Birotary engine is unique due to its exceptional technical parameters (20% less weight compared to the competition; 10% smaller built-in dimensions; 15% higher specific power)