Suzuki GS 550 M Katana - 1981 Specifications and Reviews

The 1981 Suzuki GS 550 M Katana is an all-around middleweight suited for riders seeking accessible performance and everyday practicality. Its air-cooled 549cc four-cylinder engine delivers smooth power with manageable handling, making it ideal for commuting and weekend riding. The bike is best known for its distinctive angular Katana styling that influenced motorcycle design throughout the 1980s.

1981
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General information

CategoryAllround
Year1981
ModelSuzuki GS 550 M Katana
 
 

Engine and Transmission Specifications

Transmission typefinal driveChain
Gearbox6-speed
Cooling systemAir
Fuel controlDOHC
Valves per cylinder2
Bore x stroke56.0 x 55.8 mm (2.2 x 2.2 inches)
Compression8.6:1
Power50.00
Stroke4
Engine typeIn-line four
Capacity:549.00 ccm (33.50 cubic inches)
 
 

Physical measures and capacities

Weight incl. oil, gas, etc222.0 kg (489.4 pounds)

Suzuki GS 550 M Katana dimensions and frame

Rear brakesSingle disc
Front brakesDual disc
Rear tyre dimensions4.00-18
Front tyre dimensions3.25-19

Speed and acceleration

Top speed177.0 km/h (110.0 mph)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity23.00 litres (6.08 gallons)

Performance Profile & Rider Fit

50 hp
Peak Power
5.5s
0-60 mph
110 mph
Top Speed

Best For

Track35%
City62%
Cornering65%
Daily Riding60%
Touring48%
Passenger45%

Rider Profile

Best ForSuits riders with some experience who want a classic air-cooled four-cylinder machine with manageable, moderate performance.
PurposeBest suited as a stylish naked roadster for weekend rides, café-racer styling enjoyment, and light commuting rather than serious performance riding.
Rider FitA moderate curb weight and mid-size dimensions make it approachable and manageable for most rider sizes without excessive physical strain.
CharacterThis bike has a distinctive early-80s Katana-styled character, blending retro sportbike looks with relaxed inline-four air-cooled performance.
Not Ideal ForNot suited for riders seeking modern sportbike acceleration, long-distance touring comfort, or any form of off-road capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Reviews

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