The chassis of the GSR400 uses a newly developed, lightweight, highly rigid, and refined twin-beam aluminum diecast frame. The elegant styling of the GSR400 is a perfect match for its power and grace, combining a newly designed liquid-cooled 4-cylinder DOHC engine with a fuel injection system equipped with the first 32-bit electric control module (ECM) in the 400 cm³ street bike class and coated cylinders. The GSR400 delivers dynamic and easy-to-handle performance from city streets to winding roads thanks to the unique Suzuki Dual Throttle Valve (SDTV) system, which maintains the optimum combustion conditions for the situation, while ensuring powerful torque from low to high speeds and excellent throttle response.