Suzuki GSX-R400 1991 change the color, gold anodized the front fork outer tube and front disc housing. A rear model shock of the standard model was also equipped with a reservoir tank.
Redesigned brake discs and new painting, otherwise pretty much the same design as in 1990.
The rear shocks with gas reservoir that were mounted in the ’90 year’s SP (Sports Production) were now fitted even in the standard model (visible above the rear axle). Adjustable brake lever and a steering damper included.
Suzuki GSX-R400 1991 Specifications
Colors Blue/White Red/Black Black/Pink japan edition SP model Blue/White
Dimensions and dry mass Type (frame code): GK76A Overall length: 1,995 mm (78.5 in.) Overall width: 710 mm (28.0 in) Overall height: 1,060 mm (41.7 in) Wheelbase: 1,435 mm (56.5 in) Ground Clearance: 125 mm (4.92 in.) Seat height: 735 mm (28.9 in.) Dry mass (weight): 167 kg (367 lbs)
Engine Engine type: Water-cooled DOHC inline-4, 16 valves Bore x stroke: 56,0 mm x 40,4 mm (2.205 x 1.591 in.) Piston displacement: 398 cc Compression ratio: 11,8 :1 Maximum power: 59 hp/ 12,000 rpm Maximum torque: 4,0 kg-m/ 10,000 rpm Top speed: about 200 km/h (124 mph) Starting system: Electric starter Lubrication system: Wet sump Carburetor: Mikuni 27mm x 2