For the 2017 model year, the Harley-Davidson Fat Boy Special motorcycle has a supplied wet/running weight of 734.1 lb (333 kg) and a dry weight of 705.5 lb (320 kg).
Harley-Davidson Fat Boy Special weight overview
The scale number is high enough that parking and low-speed balance deserve real consideration. Once the bike leans too far, recovering it takes much more effort than on a light machine.
Very Heavy Motorcycle
How heavy is the Harley-Davidson Fat Boy Special?
wet weight
Using a model-level wet weight comparison, the Harley-Davidson Fat Boy Special is heavier than about 85.7% of 168 Harley-Davidson custom/cruiser 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 Fat Boy Special weight & related specs
| Model years covered | 2017 |
|---|---|
| Wet / running weight | 734.1 lb (333 kg) |
| Dry weight | 705.5 lb (320 kg) |
| Engine displacement | 1,690 cc |
| Torque | 92.9 lb-ft (126 Nm) |
| Fuel capacity | 5 US gal (18.93 L) |
| Full-tank fuel weight (estimated) | 31.1 lb (14.1 kg) |
Useful weight calculations
| Torque per 100 lb | 12.66 lb-ft / 100 lb |
|---|---|
| Displacement per pound | 2.3 cc / lb |
| Weight per 100 cc | 43.4 lb / 100 cc |
| Fuel weight as % of bike weight | 4.2% |
| Weight with full tank | 736.6 lb (334.1 kg) |
What the weight numbers tell you
Harley-Davidson Fat Boy Special weight FAQ
What is the Harley-Davidson Fat Boy Special dry and wet weight?
Across the covered 2017 years, listed wet/running weight is 734.1 lb (333 kg) and listed dry weight is 705.5 lb (320 kg). Check the year-change section because the exact figure can vary by model year.
Is the Harley-Davidson Fat Boy Special lighter or heavier than other Harley-Davidson custom/cruiser motorcycles?
Compared with similar Harley-Davidsons in this dataset, it is heavier than about 85.7% of 168 custom/cruiser motorcycles using the same weight basis.
How much does a full tank add to the Harley-Davidson Fat Boy Special?
Based on the supplied 5 US gal (18.93 L) tank capacity, the gasoline itself weighs about 31.1 lb (14.1 kg) when full. This helps explain part of the difference between dry and ready-to-ride mass.
What is the combined Harley-Davidson Fat Boy Special and rider weight?
Using the model’s representative wet/running weight and a 180 lb rider, the combined bike-and-rider mass is about 914.1 lb (414.6 kg) before riding gear, luggage or a passenger.
What is the Harley-Davidson Fat Boy Special full-tank weight estimate?
Based on the available dry-weight and tank-capacity data, a full-tank estimate is 736.6 lb (334.1 kg). Oil, coolant and market-specific equipment can still make actual ready-to-ride weight different.
How much torque does the Harley-Davidson Fat Boy Special have per 100 lb?
Where compatible torque and weight figures are available, the model works out to 12.66 lb-ft per 100 lb. This gives more context than torque alone because it relates engine twist to the mass it has to move.
What is the Harley-Davidson Fat Boy Special displacement per pound?
The available figures work out to 2.3 cc per lb. This is not a performance rating, but it is a useful way to compare engine size against total motorcycle mass.
What is the Harley-Davidson Fat Boy Special weight difference versus the category median?
Compared with the median Harley-Davidson custom/cruiser motorcycle weight of 672 lb (304.8 kg), the model is roughly 62.2 lb (28.2 kg) heavier.
Where will I notice the Harley-Davidson Fat Boy Special weight most?
The main challenge is low-speed and stationary handling. Once moving the chassis may disguise the mass, but backing up or holding it on a slope still means managing the full 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.