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Suzuki GS 450 S / 1988
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1988 Suzuki GS 450 S
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The 1988 Suzuki GS 450 S is a lightweight touring middleweight powered by an air-cooled 448cc twin delivering 42 horsepower. Designed for budget-conscious riders seeking reliable everyday transportation with touring capability, it excels at fuel efficiency and low-maintenance operation. Its compact size and manageable weight make it ideal for new riders and commuters.
Capacity
448.0 ccm
Engine
Parallel Twin
Gearbox
6-speed
Wet weight
186.0 kg
Power
42.0 HP (30.9 kW)
What’s new for the 1988 Suzuki GS 450 S vs the 1987
Spec 1987 1988
Power
27.0 HP (19.9 kW)
42.0 HP (30.9 kW)
Top speed
160.0 km/h (99.4 mph)
not listed
Wet weight
191.0 kg (421.1 pounds)
186.0 kg (410.1 pounds)
Fuel capacity
15.00 litres (3.96 US gallons)
16.00 litres (4.23 US gallons)
How it rides
Editorial estimate from the spec sheet - not lab tested
Speed 35 Agility 62 Comfort 55 Off-road 15 Touring 50 Road manners 60
Best for Designed as a light, air-cooled all-rounder for commuting and casual weekend rides rather than outright performance. Built for A classic, unpretentious middleweight twin that rewards smooth, relaxed riding over aggressive throttle use. Not ideal for Not a good fit for riders seeking high-speed touring capability, serious two-up comfort, or any off-road ambition.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Full specifications
Metric
Imperial
Engine
Capacity
448.0 ccm
Power
42.0 HP (30.9 kW)
Engine type
Parallel Twin
Power/weight ratio
0.2258 HP/kg (wet)
Bore x stroke
71.0 x 56.6 mm
Compression
9.0:1
Cooling system
Air
Valves per cylinder
2
Torque
Not on record - add it
Transmission
Gearbox
6-speed
Transmission type
Manual
Final drive
Chain
Dimensions & weight
Wet weight
186.0 kg
Fuel capacity
16.00 litres
Seat height
Not on record - add it
Dry weight
Not on record - add it
Brakes & wheels
Front brakes
Single disc
Rear brakes
Expanding brake
Front tyre
3.00-18
Rear tyre
3.75-18
Specs last verified against published sources: October 2026 .
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us .
What changed, year to year Differences highlighted
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
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Common questions
What is the engine size of the Suzuki GS 450 S? The 1988 Suzuki GS 450 S has a Capacity of 448.0 ccm (27.34 cubic inches).
What engine power does the Suzuki GS 450 S have? The 1988 Suzuki GS 450 S has a Power of 42.0 HP (30.9 kW).
How many gears does the Suzuki GS 450 S have? The 1988 Suzuki GS 450 S has a Gearbox of 6-speed.
How much does the Suzuki GS 450 S weigh? The 1988 Suzuki GS 450 S has a Wet weight of 186.0 kg (410.1 pounds).
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