Two-wheeled vehicle

Two-wheeled vehicle, in particular a motorcycle or a scooter, having a vehicle body, an engine, an engine control unit adapted to control the engine, and a turnover detecting means comprising an acceleration sensor provided with the engine control unit being adapted to detect turnover based on an inclination angle of the engine control unit, wherein a first detecting direction of the acceleration sensor is arranged substantially parallel to gravity when the vehicle body is in its uninclined state.