2020 Royal Enfield INT 650 Special. The INT 650 is powered by Royal Enfield’s legendary parallel twin cylinder engine, backed with an air/oil-cooled parallel twin configuration. The 658cc engine offers 47 horsepower at 7150 RPM and a maximum of 54 Nm of torque at 5250 RPM. A smooth throttle response throughout the rev range ensures sufficient power to make light work of the city traffic or cruise effortlessly along the open roads. Stop by Rockstar Powersports St Pete today and check it out.