Key performance

76 ch
Power
🔧
1584 cc
Displacement
⚖️
320 kg
Weight
🏎️
170 km/h
Top speed
💺
690 mm
Seat height
18.8 L
Fuel capacity
💰
15 625 €
New price
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Technical specifications

Changements 2010 2011
Torque
126.0 Nm @ 3500 tr/min 125.0 Nm @ 3000 tr/min
Valve timing
Double Overhead Cams/Twin Cam (DOHC)
Lubrication
Pressurized, dry-sump
Front brakes
Single disc Single disc. 4-piston fixed
Rear brakes
Single disc Single disc. 2-piston torque-free floating

Engine

Displacement
1584 cc
Power
76.0 ch @ 5350 tr/min (55.9 kW)
Torque
125.0 Nm @ 3000 tr/min
Engine type
V2, four-stroke
Cooling
Air
Compression ratio
9.2:1
Bore × stroke
95.3 x 111.1 mm (3.8 x 4.4 inches)
Valves/cylinder
2
Fuel system
Injection. Electronic Sequential Port Fuel Injection
Valve timing
Double Overhead Cams/Twin Cam (DOHC)
Lubrication
Pressurized, dry-sump
Starter
Electric

Chassis

Frame
Mild steel, tubular frame; rectangular section backbone;
Gearbox
6-speed
Final drive
Belt   (final drive)
Clutch
9-plate, wet
Front suspension
49mm with polished aluminium fork triple clamp
Rear suspension
Fully Covered, Coil-over shock
Front wheel travel
127 mm (5.0 inches)
Rear wheel travel
79 mm (3.1 inches)

Brakes

Front brakes
Single disc. 4-piston fixed
Rear brakes
Single disc. 2-piston torque-free floating
Front tyre
130/90-B16
Rear tyre
180/70-B16

Dimensions

Seat height
690.00 mm
Wheelbase
1620.00 mm
Ground clearance
125.00 mm
Length
2330.00 mm
Fuel capacity
18.80 L
Weight
320.00 kg
Dry weight
305.00 kg
New price
15 625 €

Overview

What does a custom look like when it decides to play the bad boy and bulk up? The Harley-Davidson answer in 2011 was the Fat Bob, a machine that doesn't go unnoticed. This is not a motorcycle for the faint of heart. It stares you down with its dual front headlights, like two black eyes set in a metal cage, and its 320 kg fully fueled clearly announces that it’s not here to do pirouettes. You immediately feel the influence of the bobber style, this raw aesthetic from the 1950s, but here it has been boosted, inflated, to embody the Dyna family. Don't be fooled, despite its name evoking the Fat Boy, this is a Softail, another philosophy. The Fat Bob is a Dyna, with its tubular frame and more direct behavior, even if direct is a subjective term with such a size.

Harley-Davidson FXDF Fat Bob

At the heart of the thing is, of course, the Twin Cam 96 of 1584 cm3. With 76 horsepower and 125 Nm of torque from 3000 rpm, it doesn't seek measured performance, but authority. The power is there, massive, but it is delivered with a certain nonchalance, like a giant taking his time. The six-speed gearbox transmits this energy via a belt, silent and efficient, and the sound comes out through the Tommy Gun exhausts, an acoustic signature that is almost an instrument in its own right. On the road, this motorcycle doesn't ask you to become a cornering hero. The 130 front tire and the thickness of the 180 at the rear, combined with a wheelbase of 1620 mm, dictate a rather straight riding style, where you savor more the sensation of domination than the finesse of trajectory. It is a machine for open roads, where you can let the engine growl and enjoy its presence.

Compared to its competitors in the world of large customs, such as some Moto Guzzi or vintage Indians, the Fat Bob stands out for its assumed visual aggressiveness. It is less chromed, less "politically correct" than a Softail Standard. It is this ruggedness that makes its charm. For 15625 euros at the time, it offered a muscle alternative in the range, a choice for those who want a Dyna but with more ostentatious character. The audience? These are riders who prioritize attitude over pure performance, those who want a motorcycle that speaks before even turning the key. A beginner might be intimidated by its weight and inertia, but the seasoned touring rider will find here a charismatic road companion, especially for long journeys where the 690 mm seat comfort and the nearly 19-liter tank make sense.

Ultimately, the 2011 Fat Bob was not a motorcycle for everyone. It was a statement, a muscle style declaration in a custom world that is sometimes too uniform. Its flaws are obvious: it is not agile, it is heavy, and its 170 km/h top speed doesn't make the track rider dream. But its qualities are just as clear: it has a strong personality, an engine that provides a feeling of constant power, and an aesthetic that remains, even today, recognizable and full of history. You didn't choose it to be the fastest, but to be the one who, arriving at an appointment, immediately imposed the silent respect that such a silhouette commands.

Practical info

  • La moto est accessible aux permis : A

Indicators & positioning

Weight-to-power ratio
0.23 ch/kg
🔄
Torque / weight
0.39 Nm/kg
🔧
Volumetric power
47.3 ch/L
In category Custom / cruiser · 792-3168cc displacement (3121 motorcycles compared)
Power 75 ch Top 49%
49 ch median 75 ch 148 ch
Weight 320 kg Lighter than 35%
235 kg median 304 kg 379 kg
P/W ratio 0.23 ch/kg Top 61%
0.18 median 0.25 0.45 ch/kg

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