What category is the 2001 Harley-Davidson Fat Boy Injection?

The 2001 Harley-Davidson Fat Boy Injection has a Category of Custom / cruiser.

What is the engine size of the 2001 Harley-Davidson Fat Boy Injection?

The 2001 Harley-Davidson Fat Boy Injection has a Capacity: of 1449.00 ccm (88.42 cubic inches).

What type of engine does the 2001 Harley-Davidson Fat Boy Injection have?

The 2001 Harley-Davidson Fat Boy Injection has a Engine type of V2.

What is the engine power of the 2001 Harley-Davidson Fat Boy Injection?

The 2001 Harley-Davidson Fat Boy Injection has a Power of 64.00.

What is the torque of the 2001 Harley-Davidson Fat Boy Injection?

The 2001 Harley-Davidson Fat Boy Injection has a Torque of 105.00.

Is the 2001 Harley-Davidson Fat Boy Injection air cooled or liquid cooled?

The 2001 Harley-Davidson Fat Boy Injection has a Cooling system of Air.

How many gears does the 2001 Harley-Davidson Fat Boy Injection have?

The 2001 Harley-Davidson Fat Boy Injection has a Gearbox of 5-speed.

How much does the 2001 Harley-Davidson Fat Boy Injection weigh?

The 2001 Harley-Davidson Fat Boy Injection has a Weight incl. oil, gas, etc of 320.0 kg (705.5 pounds).

What is the seat height of the 2001 Harley-Davidson Fat Boy Injection?

The 2001 Harley-Davidson Fat Boy Injection has a Seat height of 647 mm (25.5 inches) If adjustable, lowest setting..

What is the top speed of the 2001 Harley-Davidson Fat Boy Injection?

The 2001 Harley-Davidson Fat Boy Injection has a Top speed of 173.0 km/h (107.5 mph).

Harley-Davidson Fat Boy Injection - 2001 Specifications and Reviews

Name: 2001 Harley-Davidson Fat Boy Injection
Brand: Harley-Davidson

The 2001 Harley-Davidson Fat Boy Injection is an iconic cruiser built for riders seeking classic American style with modern fuel injection reliability. Its 1449cc V-Twin engine delivers abundant low-end torque ideal for relaxed highway cruising. Known for its distinctive solid-disc wheels and commanding presence, the Fat Boy suits riders who value timeless design and effortless power delivery.

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2001

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General information
Category	Custom / cruiser
Year	2001
Model	Harley-Davidson Fat Boy Injection

Engine and Transmission Specifications
Transmission typefinal drive	Belt
Gearbox	5-speed
Cooling system	Air
Starter	Electric
Valves per cylinder	2
Fuel system	Injection
Bore x stroke	95.3 x 101.6 mm (3.8 x 4.0 inches)
Torque	105.00
Power	64.00
Stroke	4
Engine type	V2
Capacity:	1449.00 ccm (88.42 cubic inches)
Physical measures and capacities
Wheelbase	1,638 mm (64.5 inches)
Seat height	647 mm (25.5 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc	320.0 kg (705.5 pounds)
Harley-Davidson Fat Boy Injection dimensions and frame
Rear brakes diameter	292 mm (11.5 inches)
Rear brakes	Single disc
Front brakes diameter	292 mm (11.5 inches)
Front brakes	Single disc
Rear suspension travel	103 mm (4.1 inches)
Front suspension travel	129 mm (5.1 inches)
Speed and acceleration
Top speed	173.0 km/h (107.5 mph)

Other specs
Maintenance	Find parts, fluids, filters, maintenance tools and service items on eBay
Fuel capacity	18.90 litres (4.99 gallons)

Performance Profile & Rider Fit

64 hp

Peak Power

6.5s

0-60 mph

107.5 mph

Top Speed

Best For

Track10%

City45%

Cornering25%

Daily Riding55%

Touring55%

Passenger55%

Rider Profile

Best For	Best suited to riders who already have some experience with heavy cruisers, as the Fat Boy's weight and low-end torque demand confident low-speed handling.
Purpose	Built for cruising and boulevard style riding where a low, muscular stance and classic V-twin character matter more than outright speed.
Rider Fit	A heavy machine with a very low seat height, making it easy to plant feet at stops despite the substantial mass that needs to be managed at parking-lot speeds.
Character	A style-forward, torque-rich cruiser that delivers a relaxed, thumping ride rather than sharp performance, embodying classic Harley custom aesthetics.
Not Ideal For	Not a good fit for riders wanting agile cornering, high top speed, or any off-road capability.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Fit Visualizer

2001 Harley-Davidson Fat Boy Injection Rider Ergonomics Assessment

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Inseam (optional)

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Feet:

At 647mm, a rider of 175cm with a 79cm (estimated) inseam will reach the ground with both feet flat on the 2001 Harley-Davidson Fat Boy Injection, with a cramped knee angle of around 70 degrees and an upright riding position.

Data quality: measured. Assumes about 30mm of suspension sag once seated (a typical street-bike rule of thumb - stiffer or softer suspension will vary). This is an approximation from category-typical geometry and generic body proportions, not a measurement of this specific bike or you - sit on it before you buy.

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