For the 2008 model year, the Harley-Davidson FLSTF Fat Boy Firefighter motorcycle has a supplied wet/running weight of 714.1 lb (323.9 kg) and a dry weight of 694 lb (314.8 kg).
Harley-Davidson FLSTF Fat Boy Firefighter weight overview
This is a very heavy motorcycle. Good footing, sensible parking direction and avoiding awkward slopes make a real difference when handling it at walking speed.
Very Heavy Motorcycle
How heavy is the Harley-Davidson FLSTF Fat Boy Firefighter?
wet weight
Using a model-level wet weight comparison, the Harley-Davidson FLSTF Fat Boy Firefighter is heavier than about 75% 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 FLSTF Fat Boy Firefighter weight & related specs
| Model years covered | 2008 |
|---|---|
| Wet / running weight | 714.1 lb (323.9 kg) |
| Dry weight | 694 lb (314.8 kg) |
| Engine displacement | 1,573.3 cc |
| Torque | 91 lb-ft (123.4 Nm) |
| Fuel capacity | 5 US gal (18.92 L) |
| Full-tank fuel weight (estimated) | 31.1 lb (14.1 kg) |
Useful weight calculations
| Torque per 100 lb | 12.75 lb-ft / 100 lb |
|---|---|
| Displacement per pound | 2.2 cc / lb |
| Weight per 100 cc | 45.4 lb / 100 cc |
| Fuel weight as % of bike weight | 4.4% |
| Weight with full tank | 725.1 lb (328.9 kg) |
What the weight numbers tell you
Harley-Davidson FLSTF Fat Boy Firefighter weight FAQ
How much does the Harley-Davidson FLSTF Fat Boy Firefighter weigh?
For the model years covered here, wet/running weight is 714.1 lb (323.9 kg), while dry weight is 694 lb (314.8 kg). Do not treat dry and wet figures as interchangeable.
How does the Harley-Davidson FLSTF Fat Boy Firefighter weight compare with similar Harley-Davidsons?
It is on the heavier side. Its representative wet weight is around the 75th percentile among 168 compatible Harley-Davidson custom/cruiser motorcycles.
What does a full tank of gas weigh on the Harley-Davidson FLSTF Fat Boy Firefighter?
A full tank works out to about 31.1 lb (14.1 kg) from the listed 5 US gal (18.92 L) capacity. Actual fuel density varies slightly, so treat it as a practical estimate.
What does the Harley-Davidson FLSTF Fat Boy Firefighter weigh with a 180 lb rider?
The approximate combined total is 894.1 lb (405.5 kg) with a 180 lb rider, based on the representative wet/running weight used on this page.
What is the Harley-Davidson FLSTF Fat Boy Firefighter full-tank weight estimate?
Filling the listed tank brings the calculated bike weight to roughly 725.1 lb (328.9 kg). This estimate is most useful when no official wet/running figure is available.
How much weight do fuel and fluids add to the Harley-Davidson FLSTF Fat Boy Firefighter?
Available years with both measurements show about 20.1 lb (9.1 kg) added between dry and ready-to-ride figures. Fuel explains part of it, while oil, coolant and specification definitions can explain the rest.
How much of the Harley-Davidson FLSTF Fat Boy Firefighter total weight comes from fuel?
Fuel accounts for roughly 4.4% of the available motorcycle weight figure. On lighter bikes that share can be surprisingly noticeable.
How does Harley-Davidson FLSTF Fat Boy Firefighter torque compare with its weight?
Available data gives 12.75 lb-ft per 100 lb. That ratio helps explain how strong the engine is relative to the bike’s mass, especially at lower speeds.
What is the Harley-Davidson FLSTF Fat Boy Firefighter engine-size-to-weight ratio?
The model has about 2.2 cc per lb in the available data. This simply shows how much engine displacement there is for each pound of motorcycle 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.