Across 7 covered model years from 1958 to 1964, the Harley-Davidson FLH Duo Glide motorcycle has supplied dry weights ranging from 588.6 lb (267 kg) to 670.2 lb (304 kg).
Harley-Davidson FLH Duo Glide 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. The comparison uses dry weight because a usable wet/running figure was not supplied, so the actual ready-to-ride motorcycle will be heavier.
Very Heavy Motorcycle
How heavy is the Harley-Davidson FLH Duo Glide?
dry weight
Using a model-level dry weight comparison, the Harley-Davidson FLH Duo Glide is lighter than about 66.7% of 9 Harley-Davidson touring motorcycles with compatible weight data.
Dry weight range
Bike + rider total weight
These totals use the model’s representative dry weight. They exclude riding gear, luggage and a passenger.
Harley-Davidson FLH Duo Glide weight & related specs
| Model years covered | 1958, 1959, 1960, 1961, 1962, 1963, 1964 |
|---|---|
| Dry weight | 588.6 lb (267 kg) to 670.2 lb (304 kg) |
| Engine displacement | 1,212.7 cc |
| Power | 55 hp to 60 hp |
| Fuel capacity | 3.75 US gal (14.19 L) |
| Full-tank fuel weight (estimated) | 23.3 lb (10.6 kg) |
Weight changes by model year
The 1958 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 | 8.21 hp / 100 lb to 8.95 hp / 100 lb |
|---|---|
| Pounds per horsepower | 11.17 lb / hp to 12.19 lb / hp |
| Displacement per pound | 1.81 cc / lb to 2.06 cc / lb |
| Weight per 100 cc | 48.5 lb / 100 cc to 55.3 lb / 100 cc |
| Fuel weight as % of bike weight | 3.5% to 4% |
| Weight with full tank | 611.9 lb (277.6 kg) to 693.5 lb (314.6 kg) |
What the weight numbers tell you
Harley-Davidson FLH Duo Glide weight FAQ
How heavy is the Harley-Davidson FLH Duo Glide?
Listed dry weight is 588.6 lb (267 kg) to 670.2 lb (304 kg). Because no usable wet/running figure was supplied, treat that as a lower starting point rather than the exact on-road weight.
Is the Harley-Davidson FLH Duo Glide heavy compared with other Harley-Davidson touring motorcycles?
It is on the lighter side in this dataset. Its representative dry weight sits around the 33rd weight percentile among 9 Harley-Davidson touring motorcycles, meaning most compatible models are heavier.
Does the Harley-Davidson FLH Duo Glide 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 FLH Duo Glide fuel weigh?
The listed tank capacity is 3.75 US gal (14.19 L). Using approximately 0.745 kg/L gasoline, a full tank is roughly 23.3 lb (10.6 kg). That is an estimate for fuel mass, not an official Harley-Davidson curb-weight calculation.
How heavy is the Harley-Davidson FLH Duo Glide with an average-size rider?
A 180 lb rider brings the simple bike-plus-rider total to roughly 850.2 lb (385.6 kg) using the representative dry figure. Gear and luggage would add more.
How much horsepower does the Harley-Davidson FLH Duo Glide have per 100 lb?
Where compatible power and weight figures are available, it works out to 8.21 hp per 100 lb to 8.95 hp per 100 lb.
Can I treat the Harley-Davidson FLH Duo Glide dry weight as curb weight?
No. The usable figure is dry weight, so it excludes at least some operating fluids. Dry weight plus the estimated full fuel load is about 611.9 lb (277.6 kg) to 693.5 lb (314.6 kg), and oil/coolant or definition differences may add more.
What is the estimated Harley-Davidson FLH Duo Glide weight with a full tank of gas?
Filling the listed tank brings the calculated bike weight to roughly 611.9 lb (277.6 kg) to 693.5 lb (314.6 kg). This estimate is most useful when no official wet/running figure is available.
How much of the Harley-Davidson FLH Duo Glide total weight comes from fuel?
Based on the available weight basis, a full tank of gasoline represents about 3.5% to 4% of the motorcycle’s weight.
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.