Naked Motorcycles
1981Suzuki GS 550 E Red Suzi
19 fields on record
The 1981 Suzuki GS 550 E Red Suzi is a nimble middleweight classic perfect for riders seeking accessible performance and everyday practicality. Its lightweight 218kg frame and 50hp inline-four engine deliver smooth, manageable power ideal for commuting and spirited riding. Known for reliability and easy handling, this air-cooled four remains a popular entry point to classic sport bike ownership.
- Capacity
- 549.0 ccm
- Engine
- In-line four
- Gearbox
- 6-speed
- Wet weight
- 218.0 kg
- Seat height
- Not on record
Know it? Add it → - Power
- 50.0 HP (36.8 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Best suited to relaxed street riding, commuting, and weekend backroad cruising rather than outright performance.
- Built for
- The air-cooled inline-four DOHC engine delivers smooth, linear power with classic Japanese UJM charm and mechanical simplicity.
- Not ideal for
- Not the right choice for riders seeking modern sport-bike acceleration, off-road capability, or long-distance touring comfort with heavy luggage.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 549.0 ccm
- Power
- 50.0 HP (36.8 kW)
- Engine type
- In-line four
- Power/weight ratio
- 0.2294 HP/kg (wet)
- Bore x stroke
- 56.0 x 55.8 mm
- Compression
- 8.6:1
- Cooling system
- Air
- Valves per cylinder
- 2
- Torque
- Not on record - add it
Transmission
- Gearbox
- 6-speed
- Transmission type
- Manual
- Final drive
- Chain
Performance
- Top speed
- 177.0 km/h (110.0 mph)
Dimensions & weight
Brakes & wheels
- Front brakes
- Dual disc
- Rear brakes
- Single disc
- Front tyre
- 3.25-19
- Rear tyre
- 4.25-17
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
Rider Reviews
Common questions
What is the engine size of the Suzuki GS 550 E Red Suzi?
The 1981 Suzuki GS 550 E Red Suzi has a Capacity of 549.0 ccm (33.50 cubic inches).
What engine power does the Suzuki GS 550 E Red Suzi have?
The 1981 Suzuki GS 550 E Red Suzi has a Power of 50.0 HP (36.8 kW).
How many gears does the Suzuki GS 550 E Red Suzi have?
The 1981 Suzuki GS 550 E Red Suzi has a Gearbox of 6-speed.
How much does the Suzuki GS 550 E Red Suzi weigh?
The 1981 Suzuki GS 550 E Red Suzi has a Wet weight of 218.0 kg (480.6 pounds).
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