Key performance

63 ch
Power
🔧
1550 cc
Displacement
⚖️
320 kg
Weight
🏎️
160 km/h
Top speed
💺
645 mm
Seat height
18.9 L
Fuel capacity
💰
21 695 €
New price
Compare the Harley-Davidson 1550 SOFTAIL FAT BOY FLSTFI 15ème Anniversaire with: Choose a motorcycle →

Technical specifications

Engine

Displacement
1550 cc
Power
63.0 ch @ 5300 tr/min (46.3 kW)
Torque
115.7 Nm @ 3200 tr/min
Engine type
Bicylindre en V à 45°, 4 temps
Cooling
par air
Compression ratio
8.9 : 1
Bore × stroke
98.4 x 101.5 mm
Valves/cylinder
2
Fuel system
Injection

Chassis

Frame
Double berceau tubulaire en acier
Gearbox
boîte à 5 rapports
Final drive
Courroie
Front suspension
Fourche telescopique Ø 41 mm, déb : 142 mm
Rear suspension
2 amortisseurs sous le moteur, déb : 103 mm

Brakes

Front brakes
Freinage 1 disque Ø 292 mm, étrier 4 pistons
Rear brakes
Freinage 1 disque Ø 292 mm, étrier 4 pistons
Front tyre
130/90-16
Rear tyre
130/90-16

Dimensions

Seat height
645.00 mm
Fuel capacity
18.90 L
Weight
320.00 kg
Dry weight
302.00 kg
New price
21 695 €

Overview

Fifteen years. To celebrate the occasion, Milwaukee didn't opt for subtlety. The Fat Boy, that chromed icon born in 1990 in the wake of the Terminator 2 film, returned in 2005 with a few extra pounds under the tank and anniversary livery that left no doubt about the company's intentions: celebrate, exhibit, impress.

Harley-Davidson 1550 SOFTAIL FAT BOY FLSTFI 15ème Anniversaire

The eye is immediately drawn to the details. An ignition cover engraved for the occasion, a 24-karat gold-plated tank badge, a Badlander-inspired seat with a low-slung profile. This is Harley in all its unapologetic excess, and purists will appreciate the coherence of the ensemble. But the real news is what happens underneath. The Twin Cam 88B receives the Screamin Eagle kit and pushes displacement to 1,550 cc. The result: 63 horsepower at 5,300 rpm and, more importantly, 115.7 Nm of torque available from just 3,200 rpm. This engine doesn't play for finesse — it plays for quiet force, the kind that crushes the road without raising its voice.

On the scales, the Fat Boy tips in at 320 kg fully loaded. That's heavy, very heavy, and nobody tries to hide it. The 645 mm seat height remains accessible, but this custom is clearly not intended for novices or smaller riders. Top speed is capped at 160 km/h, which perfectly illustrates the machine's positioning: this is not a roadster built to swallow open roads at sustained revs — it's a cruiser built to parade, to feel the asphalt roll beneath its wide 130/90-16 tires, identical front and rear. The belt drive, a brand signature, adds its contribution to acoustic comfort and reduced maintenance.

Compared to a Honda VTX 1800 or a Yamaha Warrior from the same era, the anniversary Fat Boy makes no attempt to convince on technical grounds. It's not running the same race. Its argument is belonging to a myth, the symbolic weight of a machine that carries the brand's history in its shapes as much as in its sounds. At €21,695, this limited edition targets the discerning enthusiast — a potential collector — who wants a dated, identifiable example rather than the standard production version. It's a purchase of the heart as much as of the mind, and Harley-Davidson has long known that its customers buy both at the same time.

Practical info

  • La moto est accessible aux permis : A

Indicators & positioning

Weight-to-power ratio
0.19 ch/kg
🔄
Torque / weight
0.36 Nm/kg
🔧
Volumetric power
40.1 ch/L
In category Custom / cruiser · 775-3100cc displacement (3140 motorcycles compared)
Power 62 ch Top 71%
49 ch median 75 ch 148 ch
Weight 320 kg Lighter than 35%
235 kg median 304 kg 378 kg
P/W ratio 0.19 ch/kg Top 86%
0.18 median 0.25 0.45 ch/kg

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