| MODEL | SUZUKI GS 550 1977 |
| Year | 1977 |
| Engine Type | Four stroke, transverse four cylinders, DOHC, 2 valves per cylinder |
| Displacement / Capacity | 549 cc / 33.5 cu in |
| Bore X Stroke | 56 x 55.8 mm |
| Compression Ratio | 8.6:1 |
| Cooling System | Air cooled |
| Max Power | 35.8 kW / 49 hp @ 9000 rpm |
| Max Torque | 42 Nm / 4.3 kgf-m / 31 lb-ft @ 7500 rpm |
| Ignition | Battery and coil |
| Induction | 4 x Mikuni VM22SS carburetors |
| Start System | Electric and kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6 Speed |
| Clutch | Wet, 15 multi-plate |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | — |
| Front Suspension | Telescopic fork, oil damped |
| Rear Suspension | Twin shocks, coil over, 5-way adjustable spring preload |
| Front Brakes | Single 275 mm disc, 1 piston caliper |
| Rear Brakes | Drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 195 kg / 430 lbs |
| Wet Weight | 216 kg / 476 lbs |
| WHEEL SPECS | |
| Front Tyre | 3.25-19 |
| Rear Tyre | 3.75-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 17 Litres / 4.5 US gal / 3.7 Imp gal |
| Fuel Consumption | — |
| Top Speed | 181 km/h / 112 mph |
The GS550 arrived in 1977 as the smaller sibling of the GS750 and GS1000, a conventional air-cooled DOHC four with two valves per cylinder and points ignition. It was reliable and good value, praised for chassis stiffness, but vibrated at higher revs and had a stiff new gearbox.
