Key performance

93 ch
Power
🔧
1868 cc
Displacement
⚖️
306 kg
Weight
🏎️
175 km/h
Top speed
💺
710 mm
Seat height
13.6 L
Fuel capacity
💰
19 590 €
New price
Compare the Harley-Davidson 1870 Softail Fat Bob FXFBS with: Choose a motorcycle →

Technical specifications

Changements 2020 2021
Torque
154.9 Nm @ 3000 tr/min 154.9 Nm @ 3500 tr/min
New price
20 110 € 19 590 €

Engine

Displacement
1868 cc
Power
93.0 ch @ 5020 tr/min (68.4 kW)
Torque
154.9 Nm @ 3500 tr/min
Engine type
Bicylindre en V à 45°, 4 temps
Cooling
par air
Compression ratio
10.5 : 1
Bore × stroke
102 x 114.3 mm
Valves/cylinder
4
Fuel system
Injection

Chassis

Frame
Double berceau en acier
Gearbox
boîte à 6 rapports
Final drive
Courroie
Front suspension
Fourche téléhydraulique inversée Ø 43 mm, déb : 130 mm
Rear suspension
Mono-amortisseur sous la selle, déb : 113 mm

Brakes

Front brakes
Freinage 2 disques Ø 300 mm, étrier 4 pistons
Rear brakes
Freinage 1 disque Ø 292 mm, étrier 2 pistons
Front tyre
150/80-16
Rear tyre
180/70-16

Dimensions

Seat height
710.00 mm
Fuel capacity
13.60 L
Weight
306.00 kg
Dry weight
296.00 kg
New price
19 590 €

Overview

Who would have thought that one day a Harley-Davidson would make you want to grit your teeth and charge straight into the fray? The Fat Bob FXFBS 2021 edition is exactly that. A machine that has cut ties with the past to transform into a thick-set brute, built to intimidate as much standing still as in motion. Forget the Dyna of old with its twin side-mounted shock absorbers. The Fat Bob has shifted to the Softail platform, with its steel double-cradle frame disguised as a hardtail and its mono-shock hidden beneath the seat. The result: a significant increase in rigidity and noticeably sharper road handling. The preload adjuster, accessible just behind the right calf, allows comfort adjustments without tools. And the weight-loss program has paid off, shedding 15 kilograms in the transition. At 306 kg wet, the beast remains hefty, but it's lost fat, not muscle.

Harley-Davidson 1870 Softail Fat Bob FXFBS

From the front, the sight is striking. The 43 mm inverted fork frames a 150 mm front tire mounted on a 16-inch rim, all topped by a sharply chopped fender. Two 300 mm discs clamped by four-piston calipers promise braking worthy of the mass on board. The LED headlight, a rectangular block with a slit-eyed stare, abandons all roundness for an almost mechanoid face. You briefly think of certain Japanese bikes, and that's a compliment. The rear fender has been mercilessly shortened, the seat widened, the 13.6-liter tank slimmed down, and the exhaust outlets play the visual provocation card. The overall design is compact, squat, stocky. The Fat Bob no longer tries to seduce: it commands.

Beneath that shell, the Milwaukee-Eight 114 unleashes its 1,868 cc with quiet authority. The 45-degree V-twin, fed by 4 valves and 2 spark plugs per cylinder, delivers 93 horsepower at 5,020 rpm and, more importantly, 155 Nm of torque from just 3,500 rpm. It's low, it's fat, it's exactly what you expect from a big American twin. The raw horsepower doesn't compete with an Indian Sport Chief or a Ducati Diavel, but the massive mid-range torque changes the game. With every twist of the throttle, the thrust is visceral, accompanied by a deep rumble that travels up through the frame. The engine has gained refinement over the old Twin Cam, with better-filtered vibrations at idle and appreciable flexibility in city riding. The six-speed gearbox transmits it all via a belt drive—silent and maintenance-free. Top speed caps out at 175 km/h: this isn't a missile, it's a bulldozer.

Harley-Davidson 1870 Softail Fat Bob FXFBS

The seat, perched at 710 mm, accommodates all body types, including shorter riders. That's a strong point for a machine of this caliber. But the tank limited to 13.6 liters demands frequent stops, especially if you have a heavy right hand. On the road, the suspensions with limited travel (130 mm up front, 113 mm at the rear) and the 16-inch tires favor road feel and straight-line stability at the expense of comfort on broken pavement. The Fat Bob isn't a touring bike—it's a muscular cruiser built for urban rides and weekend jaunts. Long-distance hauls are not its playground.

Harley-Davidson 1870 Softail Fat Bob FXFBS

At €19,590, Harley positions the Fat Bob against serious competitors like the Indian Chief Dark Horse or the Triumph Rocket 3 R, the latter playing in a higher power category. The price tag remains steep for a 93-horsepower twin, but what you're paying for here is the design, the presence, and that stubbornly characterful engine. The Fat Bob is aimed at riders who want a machine with a strong personality, an aggressive custom that makes no concessions to consensus. Not a bike for everyone. Exactly as it should be.

Standard equipment

  • Assistance au freinage : ABS de série

Practical info

  • La moto est accessible aux permis : A

Indicators & positioning

Weight-to-power ratio
0.30 ch/kg
🔄
Torque / weight
0.51 Nm/kg
🔧
Volumetric power
49.1 ch/L
In category Custom / cruiser · 934-3736cc displacement (2727 motorcycles compared)
Power 92 ch Top 38%
50 ch median 83 ch 154 ch
Weight 306 kg Lighter than 53%
240 kg median 308 kg 380 kg
P/W ratio 0.30 ch/kg Top 30%
0.19 median 0.26 0.52 ch/kg

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