550 H1 4-Stroke Engine with EFI: Pulling, accelerating and climbing. That's what our engines are good at. And this one is no exception. The potent 550 H1 engine is a 545cc, SOHC, liquid-cooled single cylinder sporting electronic fuel injection.
500 H1 4-Stroke Engine With EFI: The 500 is an industry favorite for a reason. The 443cc, SOHC, liquid-cooled single-cylinder engine delivers smooth, consistent acceleration. Electronic fuel injection enables a wide torque curve and effortless power delivery by constantly tuning the engine for any temperature, elevation and humidity changes.