Across 4 covered model years from 1987 to 1991, the Harley-Davidson FLST 1340 Heritage Softail motorcycle has supplied wet/running weights ranging from 657 lb (298 kg) to 692.3 lb (314 kg).
Harley-Davidson FLST 1340 Heritage Softail weight overview
This sits in heavyweight territory. Riders should think about garage movement, backing up, surface slope and passenger/luggage load as much as the on-road feel.
Very Heavy Motorcycle
How heavy is the Harley-Davidson FLST 1340 Heritage Softail?
wet weight
Using a model-level wet weight comparison, the Harley-Davidson FLST 1340 Heritage Softail is heavier than about 56% of 168 Harley-Davidson custom/cruiser motorcycles with compatible weight data.
Ready-to-ride weight range
Bike + rider total weight
These totals use the model’s representative wet weight. They exclude riding gear, luggage and a passenger.
Harley-Davidson FLST 1340 Heritage Softail weight & related specs
| Model years covered | 1987, 1988, 1989, 1991 |
|---|---|
| Wet / running weight | 657 lb (298 kg) to 692.3 lb (314 kg) |
| Engine displacement | 1,337 cc |
| Power | 58 hp |
| Fuel capacity | 3.43 US gal (13 L) |
| Full-tank fuel weight (estimated) | 21.4 lb (9.7 kg) |
Weight changes by model year
The 1987 model is used as the baseline where data is available. Only later supplied values that differ are shown below. A year pill does not mean every individual weight field was supplied for that year.
Useful weight calculations
| Horsepower per 100 lb | 8.38 hp / 100 lb |
|---|---|
| Pounds per horsepower | 11.94 lb / hp |
| Displacement per pound | 1.93 cc / lb to 2.04 cc / lb |
| Weight per 100 cc | 49.1 lb / 100 cc to 51.8 lb / 100 cc |
| Fuel weight as % of bike weight | 3.1% to 3.2% |
What the weight numbers tell you
Harley-Davidson FLST 1340 Heritage Softail weight FAQ
How heavy is the Harley-Davidson FLST 1340 Heritage Softail ready to ride?
Listed ready-to-ride weight is 657 lb (298 kg) to 692.3 lb (314 kg). The year-specific section above shows which years use each figure where the supplied value changes.
Is the Harley-Davidson FLST 1340 Heritage Softail heavy compared with other Harley-Davidson custom/cruiser motorcycles?
It sits fairly close to the middle of the category. Its representative wet weight is around the 56th percentile among 168 compatible Harley-Davidson custom/cruiser motorcycles.
Does the Harley-Davidson FLST 1340 Heritage Softail weight change by model year?
Not every covered year uses the same figure. The page groups identical values together and lists the later model years where the supplied weight specification changes.
How much does the Harley-Davidson FLST 1340 Heritage Softail fuel weigh?
The listed tank capacity is 3.43 US gal (13 L). Using approximately 0.745 kg/L gasoline, a full tank is roughly 21.4 lb (9.7 kg). That is an estimate for fuel mass, not an official Harley-Davidson curb-weight calculation.
How heavy is the Harley-Davidson FLST 1340 Heritage Softail with an average-size rider?
A 180 lb rider brings the simple bike-plus-rider total to roughly 854.6 lb (387.6 kg) using the representative wet/running figure. Gear and luggage would add more.
How much horsepower does the Harley-Davidson FLST 1340 Heritage Softail have per 100 lb?
Where compatible power and weight figures are available, it works out to 8.38 hp per 100 lb. That places it around the 20th percentile within the compatible Harley-Davidson custom / cruiser power-to-weight comparison.
How many cc does the Harley-Davidson FLST 1340 Heritage Softail have per pound?
Engine displacement relative to bike weight is 1.93 cc per lb to 2.04 cc per lb. It can help compare motorcycles from very different displacement classes without relying on cc alone.
Will the Harley-Davidson FLST 1340 Heritage Softail feel heavy at low speed?
It is heavy enough that smart parking matters. Avoid situations where you have to paddle it backward uphill or catch it after it leans too far.
Motorcycle specifications can vary by model year, market, equipment and the exact dry/curb-weight definition. Calculated fuel-weight and ratio figures on this page are estimates derived from the supplied specifications. Confirm critical figures in the owner’s manual or on the official Harley-Davidson website.