Across 8 covered model years from 2018 to 2025, the Harley-Davidson Road King Special motorcycle has supplied wet/running weights ranging from 807.1 lb (366.1 kg) to 820.1 lb (372 kg) and dry weights ranging from 774 lb (351.1 kg) to 782.6 lb (355 kg), depending on model year.
Harley-Davidson Road King Special 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 Road King Special?
wet weight
Using a model-level wet weight comparison, the Harley-Davidson Road King Special is lighter than about 56.7% of 75 Harley-Davidson touring motorcycles with compatible weight data.
Dry vs ready-to-ride weight
Bike + rider total weight
These totals use the model’s representative wet weight. They exclude riding gear, luggage and a passenger.
Harley-Davidson Road King Special weight & related specs
| Model years covered | 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025 |
|---|---|
| Wet / running weight | 807.1 lb (366.1 kg) to 820.1 lb (372 kg) |
| Dry weight | 774 lb (351.1 kg) to 782.6 lb (355 kg) |
| Engine displacement | 1,688 cc to 1,868 cc |
| Power | 87 hp to 100 hp |
| Torque | 101.8 lb-ft (138 Nm) to 122 lb-ft (165.4 Nm) |
| Fuel capacity | 6 US gal (22.71 L) |
| Full-tank fuel weight (estimated) | 37.3 lb (16.9 kg) |
Weight changes by model year
The 2018 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 | 10.61 hp / 100 lb to 12.39 hp / 100 lb |
|---|---|
| Pounds per horsepower | 8.07 lb / hp to 9.43 lb / hp |
| Torque per 100 lb | 12.41 lb-ft / 100 lb to 14.87 lb-ft / 100 lb |
| Displacement per pound | 2.06 cc / lb to 2.31 cc / lb |
| Weight per 100 cc | 43.2 lb / 100 cc to 48.6 lb / 100 cc |
| Fuel weight as % of bike weight | 4.5% to 4.6% |
| Weight with full tank | 811.3 lb (368 kg) to 819.9 lb (371.9 kg) |
What the weight numbers tell you
Harley-Davidson Road King Special weight FAQ
What does the Harley-Davidson Road King Special weigh ready to ride?
The supplied figures span 807.1 lb (366.1 kg) to 820.1 lb (372 kg) for wet/running weight and 774 lb (351.1 kg) to 782.6 lb (355 kg) for dry weight across the years in this page. Wet weight is the better guide to what you actually manage on the road.
Is the Harley-Davidson Road King Special heavy compared with other Harley-Davidson touring motorcycles?
It sits fairly close to the middle of the category. Its representative wet weight is around the 43rd percentile among 75 compatible Harley-Davidson touring motorcycles.
Does the Harley-Davidson Road King Special 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 Road King Special fuel weigh?
The listed tank capacity is 6 US gal (22.71 L). Using approximately 0.745 kg/L gasoline, a full tank is roughly 37.3 lb (16.9 kg). That is an estimate for fuel mass, not an official Harley-Davidson curb-weight calculation.
How heavy is the Harley-Davidson Road King Special with an average-size rider?
A 180 lb rider brings the simple bike-plus-rider total to roughly 993.6 lb (450.7 kg) using the representative wet/running figure. Gear and luggage would add more.
How much horsepower does the Harley-Davidson Road King Special have per 100 lb?
Where compatible power and weight figures are available, it works out to 10.61 hp per 100 lb to 12.39 hp per 100 lb. That places it around the 99th percentile within the compatible Harley-Davidson touring power-to-weight comparison.
How heavy is the Harley-Davidson Road King Special after filling the fuel tank?
Using the listed dry weight plus the calculated fuel mass, the estimated weight with a full tank is 811.3 lb (368 kg) to 819.9 lb (371.9 kg). That still may not equal official curb weight because dry-weight definitions can exclude other fluids or equipment.
What is the Harley-Davidson Road King Special dry-to-wet weight difference?
The supplied model-year data shows roughly 33.1 lb (15 kg) to 37.5 lb (17 kg) between dry and wet/running weight. The exact gap can vary by year and by the manufacturer’s weight definition.
What is the Harley-Davidson Road King Special torque per 100 lb of bike weight?
The calculated torque-to-weight range is 12.41 lb-ft per 100 lb to 14.87 lb-ft per 100 lb. It is useful for comparing bikes with very different overall weights.
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.