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Harley-Davidson FXSTC 1340 Softail Custom / 1988
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1988 Harley-Davidson FXSTC 1340 Softail Custom
19 fields on record
The 1988 Harley-Davidson FXSTC 1340 Softail Custom is a classic cruiser designed for riders seeking authentic American styling with modern comfort. Its 1337cc air-cooled V-twin engine delivers 58 horsepower with iconic low-slung appeal, hidden rear suspension, and aggressive custom aesthetics that defined 1980s Harley culture.
Capacity
1337.0 ccm
Engine
V-Twin
Gearbox
5-speed
Wet weight
298.0 kg
Power
58.0 HP (42.7 kW) @ 5000 RPM
What’s new for the 1988 Harley-Davidson FXSTC 1340 Softail Custom vs the 1987
Spec 1987 1988
Fuel capacity
19.00 litres (5.02 US gallons)
20.00 litres (5.28 US gallons)
How it rides
Editorial estimate from the spec sheet - not lab tested
Speed 26 Agility 31 Comfort 65 Off-road 5 Touring 55 Road manners 60
Best for Built for laid-back boulevard cruising and show-worthy style rather than outright speed or sport handling. Built for A classic air-cooled Softail Custom with big V-twin thump, chrome-heavy styling, and a stretched-out, feet-forward cruising stance. Not ideal for Not for riders seeking quick acceleration, nimble cornering, or any 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
Metric
Imperial
Engine
Capacity
1337.0 ccm
Power
58.0 HP (42.7 kW) @ 5000 RPM
Engine type
V-Twin
Power/weight ratio
0.1946 HP/kg (wet)
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
5-speed
Transmission type
Manual
Final drive
Belt
Performance
Top speed
167.0 km/h (103.8 mph)
Dimensions & weight
Wet weight
298.0 kg
Fuel capacity
20.00 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
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Common questions
What is the engine size of the Harley-Davidson FXSTC 1340 Softail Custom? The 1988 Harley-Davidson FXSTC 1340 Softail Custom has a Capacity of 1337.0 ccm (81.59 cubic inches).
What engine power does the Harley-Davidson FXSTC 1340 Softail Custom have? The 1988 Harley-Davidson FXSTC 1340 Softail Custom has a Power of 58.0 HP (42.7 kW) @ 5000 RPM.
How many gears does the Harley-Davidson FXSTC 1340 Softail Custom have? The 1988 Harley-Davidson FXSTC 1340 Softail Custom has a Gearbox of 5-speed.
How much does the Harley-Davidson FXSTC 1340 Softail Custom weigh? The 1988 Harley-Davidson FXSTC 1340 Softail Custom has a Wet weight of 298.0 kg (657.0 pounds).
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