Cruisers

1983Harley-Davidson FXST 1340 Softail

19 fields on record

The 1983 Harley-Davidson FXST 1340 Softail prototype introduced the iconic hidden rear suspension design that revolutionized cruiser styling. This 64-horsepower V-twin appeals to riders seeking classic aesthetics with modern comfort. The Softail's innovative rear suspension and lightweight 298kg frame established the foundation for one of Harley's most successful and enduring motorcycle lineups.

Capacity: 1337.0 ccm
Engine: V -Twin twin, four-stroke
Gearbox: 4-speed
Wet weight: 298.0 kg
Seat height: Not on record
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Power: 64.0 HP

⇄ Compare with another bike All model years

Other years 1983 1984 1985 1986 1987 1988 1989 1990 1991

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail5%

Cornering30%

City riding45%

Daily riding55%

Touring55%

Two-up55%

Track5%

Best for: Built for relaxed, low-rpm cruising and boulevard presence rather than speed, agility, or long-distance efficiency.
Built for: A classic torque-driven V-twin cruiser with a laid-back, thumping character that rewards smooth, unhurried riding over aggressive throttle inputs.
Not ideal for: Not a good fit for riders seeking sharp cornering, quick acceleration, or any kind of off-road capability.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Full specifications

Engine

Capacity: 1337.0 ccm
Power: 64.0 HP
Engine type: V -Twin twin, four-stroke
Power/weight ratio: 0.2148 HP/kg
Bore x stroke: 88.8 x 108.0 mm
Compression: 8.5:1
Cooling system: Air
Valves per cylinder: 2
Torque: Not on record - add it

Transmission

Gearbox: 4-speed
Transmission type: Manual
Final drive: Chain

Performance

Top speed: 174.0 km/h (108.1 mph)

Dimensions & weight

Wet weight: 298.0 kg
Fuel capacity: 19.00 litres
Seat height: Not on record - add it
Dry weight: Not on record - add it

Brakes & wheels

Front brakes: Single disc
Rear brakes: Single disc
Front tyre: MH 90-21
Rear tyre: MT 90-16

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted

Specification	1983	1985	1987	1989	1991
Capacity	1337.00 ccm (81.58 cubic inches)	1337.00 ccm (81.58 cubic inches)	1337.00 ccm (81.58 cubic inches)	1337.00 ccm (81.58 cubic inches)	1337.00 ccm (81.58 cubic inches)
Fuel capacity	19.00 litres (5.02 gallons)	19.00 litres (5.02 gallons)	19.00 litres (5.02 gallons)	20.00 litres (5.28 gallons)	20.00 litres (5.28 gallons)