ORIGINAL specs.

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Suzuki GS 450cc, 1981.

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Engine type:Air-cooled inline-2 4-stroke, DOHC, 4 valves

Cylinder displacement:448 cc

Bore x stroke:71,0 x 56,6 mm (2.795 x 2.228 in.)

Compression ratio:9,0 :1

Carburetor:Mikuni 34 mm x 2

Maximum power output:42,3 hp (31,1 kW)/ 9.000 rpm

Maximum torque:36,6 Nm (3,7 kg-m)/ 7.500 rpm

Ignition:Transistorized

Starting system:Electric starter

Generator:Three-phase A.C. generator

Battery:12V 12Ah

Clutch:Multiple plate wet

Speeds:6

Final drive:Chain

Wheelbase:1 385 mm (54.5 in)

Dry weight:175 kg (385 lbs) (abt 190 kg/418 lbs wet)

Frame:Tubural steel craddle

Front suspension:Oil-damped anti-dive telescope

Rear suspension:Swinging arm, coil spring, oil damped,

5-way adjustable spring preload

Front fork stroke:140 mm (5.52 in.)

Rear wheel travel:100 mm (3.94 in.)

Front brake:Single disc

Rear brake:Drum brake

Front tyre:3.00-18

Rear tyre:3.50-18

Weight/power ratio (kg/hp):4,2