The Inazuma is equipped with a 400 cm³ 4-cylinder oil-cooled DOHC 4-valve engine, Suzuki’s first application of oil cooling in the 400 cm³ class. Developed based on the oil-cooled engine used in the GSF750 and mounted on the same chassis as a 750 cm³ bike, the result is smooth performance in the low- to mid-rpm range and dynamic response in the high rpm range. In combination with extra-wide 170 mm tires, the presence of the Inazuma goes beyond that of a conventional 400 cm³ model, despite a dry weight of only 185 kg thanks to thorough weight reduction measures. Furthermore, a comfortable seat height of 760 mm and stable handling produce an easy-to-handle and rideable bike from city streets to twisty roads in the mountains.

Dimensions and weight	Dimensions	Overall length	2,140 mm
		Overall width	745 mm
		Overall height	1,090 mm
	Wheelbase		1,460 mm
	Weight		185 kg (Dry)
Engine	Engine type		4-stroke, 4-cylinder, oil-cooled, DOHC
	Engine displacement		399 cm³
	Bore x stroke		52.0 mm × 47.0 mm
	Maximum power		39kW(53PS) / 11,000rpm
	Maximum torque		36.3N-m / 9,500rpm
Transmission			6-speed constant mesh
Front tire size			120/70ZR17 (58W)
Rear tire size			170/60ZR17 (72W)