Harley-Davidson FLSTFB Fat Boy Lo Weight (700lb)

Quick answer

For the 2011 model year, the Harley-Davidson FLSTFB Fat Boy Lo motorcycle has a listed dry weight of 700 lb (317.5 kg).

Dry weight700 lb (317.5 kg)
Fuel capacity5.2 US gal (19.7 L)
Full tank fuel weight32.4 lb (14.7 kg)
Model years covered
2011

Harley-Davidson FLSTFB Fat Boy Lo weight overview

WHAT THIS MEANS

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. 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

CATEGORY WEIGHT POSITION

How heavy is the Harley-Davidson FLSTFB Fat Boy Lo?

dry weight

Using a model-level dry weight comparison, the Harley-Davidson FLSTFB Fat Boy Lo is heavier than about 88.2% of 51 Harley-Davidson custom/cruiser motorcycles with compatible weight data.

LighterTypicalHeavier
700 lb (317.5 kg)
51 Harley-Davidson custom/cruiser motorcyclesMedian: 599.7 lb (272 kg)
WEIGHT VISUAL

Dry weight

Dry weight700 lb (317.5 kg)
REAL-WORLD LOAD

Bike + rider total weight

These totals use the model’s representative dry weight. They exclude riding gear, luggage and a passenger.

150 lb rider850 lb (385.5 kg)bike + rider • bike is 82.4% of total mass
180 lb rider880 lb (399.1 kg)bike + rider • bike is 79.5% of total mass
210 lb rider910 lb (412.8 kg)bike + rider • bike is 76.9% of total mass

Harley-Davidson FLSTFB Fat Boy Lo weight & related specs

Model years covered 2011
Dry weight 700 lb (317.5 kg)
Engine displacement 1,584 cc
Torque 93.7 lb-ft (127 Nm)
Fuel capacity 5.2 US gal (19.7 L)
Full-tank fuel weight (estimated) 32.4 lb (14.7 kg)

Useful weight calculations

Torque per 100 lb 13.38 lb-ft / 100 lb
Displacement per pound 2.26 cc / lb
Weight per 100 cc 44.2 lb / 100 cc
Fuel weight as % of bike weight 4.6%
Weight with full tank 732.3 lb (332.2 kg)

What the weight numbers tell you

Using a model-level dry weight comparison, the Harley-Davidson FLSTFB Fat Boy Lo is heavier than about 88.2% of 51 Harley-Davidson custom/cruiser motorcycles with compatible weight data.
A full tank is not weightless: the 5.2 US gal (19.7 L) listed capacity works out to approximately 32.4 lb (14.7 kg) of gasoline. This is an estimate rather than a Harley-Davidson curb-weight specification.

Harley-Davidson FLSTFB Fat Boy Lo weight FAQ

How much does the Harley-Davidson FLSTFB Fat Boy Lo weigh?

The source data gives 700 lb (317.5 kg) as dry weight. A fueled, road-ready bike will weigh more than this figure.

How does the Harley-Davidson FLSTFB Fat Boy Lo weight compare with similar Harley-Davidsons?

It is on the heavier side. Its representative dry weight is around the 88th percentile among 51 compatible Harley-Davidson custom/cruiser motorcycles.

What does a full tank of gas weigh on the Harley-Davidson FLSTFB Fat Boy Lo?

A full tank works out to about 32.4 lb (14.7 kg) from the listed 5.2 US gal (19.7 L) capacity. Actual fuel density varies slightly, so treat it as a practical estimate.

What does the Harley-Davidson FLSTFB Fat Boy Lo weigh with a 180 lb rider?

The approximate combined total is 880 lb (399.1 kg) with a 180 lb rider, based on the representative dry weight used on this page.

How much heavier will the Harley-Davidson FLSTFB Fat Boy Lo be than its dry weight?

Do not treat dry weight as curb weight. Adding the listed fuel capacity alone produces roughly 732.3 lb (332.2 kg); the true ready-to-ride figure can still differ because dry-weight definitions vary.

What is the estimated Harley-Davidson FLSTFB Fat Boy Lo weight with a full tank of gas?

The page calculates about 732.3 lb (332.2 kg) with a full tank by adding the listed fuel mass to the dry figure. Treat this as a practical estimate, not an official Harley-Davidson curb-weight number.

What is the Harley-Davidson FLSTFB Fat Boy Lo torque-to-weight ratio?

Available data gives 13.38 lb-ft per 100 lb. That ratio helps explain how strong the engine is relative to the bike’s mass, especially at lower speeds.

How large is the Harley-Davidson FLSTFB Fat Boy Lo engine for its weight?

The model has about 2.26 cc per lb in the available data. This simply shows how much engine displacement there is for each pound of motorcycle weight.

Is the Harley-Davidson FLSTFB Fat Boy Lo above or below the typical Harley-Davidson custom/cruiser motorcycle weight?

The representative dry weight is about 100.3 lb (45.5 kg) heavier than the median Harley-Davidson custom/cruiser motorcycle weight of 599.7 lb (272 kg) in this dataset.

Official information note

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.