Cruisers
1991Harley-Davidson FLST 1340 Heritage Softail
18 fields on record
The 1991 Harley-Davidson FLST 1340 Heritage Softail is a classic cruiser built for riders seeking authentic Harley character with modern comfort. Its air-cooled V-twin engine and hidden rear suspension deliver smooth cruising capability while maintaining traditional styling. Best known for blending retro aesthetics with reliable performance, it appeals to touring enthusiasts and nostalgic riders alike.
- Capacity
- 1337.0 ccm
- Engine
- V-Twin, four-stroke
- Gearbox
- 5-speed
- Wet weight
- 298.0 kg
- Seat height
- Not on record
Know it? Add it → - Power
- 49.0 HP (36.0 kW)
What’s new for the 1991 Harley-Davidson FLST 1340 Heritage Softail
vs the 1990| Spec | 1990 | 1991 |
|---|---|---|
| Power | 58.0 HP (42.7 kW) | 49.0 HP (36.0 kW) |
| Top speed | 149.0 km/h (92.6 mph) | not listed |
| Wet weight | 314.0 kg (692.3 pounds) | 298.0 kg (657.0 pounds) |
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- It's built for relaxed cruising and boulevard riding where style and torque-driven presence matter more than outright speed.
- Built for
- It delivers a classic Harley experience with deep V-twin rumble, laid-back ergonomics, and unmistakable Softail styling.
- Not ideal for
- This is not the machine for riders seeking sharp cornering ability, high-speed thrills, 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.
Engine
- Capacity
- 1337.0 ccm
- Power
- 49.0 HP (36.0 kW)
- Engine type
- V-Twin, four-stroke
- Power/weight ratio
- 0.1644 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
Dimensions & weight
Brakes & wheels
- Front brakes
- Single disc
- Rear brakes
- Single disc
- Front tyre
- MT 90-16
- 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 | 1987 | 1988 | 1989 | 1990 | 1991 |
|---|---|---|---|---|---|
| Capacity | 1337 cc | 1337 cc | 1337 cc | 1337 cc | 1337 cc |
| Fuel capacity | 13 L | 13 L | 13 L | 13 L | 13 L |
Illustrative - generated automatically by diffing the year records already on file, not a manufacturer-published changelog.
Rider Reviews
Common questions
What is the engine size of the Harley-Davidson FLST 1340 Heritage Softail?
The 1991 Harley-Davidson FLST 1340 Heritage Softail has a Capacity of 1337.0 ccm (81.59 cubic inches).
What engine power does the Harley-Davidson FLST 1340 Heritage Softail have?
The 1991 Harley-Davidson FLST 1340 Heritage Softail has a Power of 49.0 HP (36.0 kW).
How many gears does the Harley-Davidson FLST 1340 Heritage Softail have?
The 1991 Harley-Davidson FLST 1340 Heritage Softail has a Gearbox of 5-speed.
How much does the Harley-Davidson FLST 1340 Heritage Softail weigh?
The 1991 Harley-Davidson FLST 1340 Heritage Softail has a Wet weight of 298.0 kg (657.0 pounds).
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