A braking system for a motorcycle includes a pressure regulating unit interposed between hydraulic pressure generating unit and a wheel brake, a control unit which controls operation of the pressure regulating unit so as to regulate hydraulic pressure outputted from the hydraulic pressure generating unit and exert the regulated pressure on the wheel brake, a support fixing the pressure regulating unit to an engine body mounted on a body frame of the motorcycle, and an elastic member disposed between the support and the pressure regulating unit for reducing or preventing vibration of the engine body being transmitted to the pressure regulating unit.