Key performance

87 ch
Power
🔧
1745 cc
Displacement
⚖️
304 kg
Weight
🏎️
170 km/h
Top speed
💺
660 mm
Seat height
18.9 L
Fuel capacity
💰
20 160 €
New price
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Technical specifications

Engine

Displacement
1745 cc
Power
87.0 ch @ 5020 tr/min (64.0 kW)
Torque
145.1 Nm @ 3000 tr/min
Engine type
Bicylindre en V à 45°, 4 temps
Cooling
par air
Compression ratio
10 : 1
Bore × stroke
100 x 111.1 mm
Valves/cylinder
2
Camshafts
2 ACT
Fuel system
Injection

Chassis

Frame
tubulaire en acier, poutre principale rectangulaire
Gearbox
boîte à 6 rapports
Final drive
Courroie
Front suspension
fourche téléscopique Ø 49 mm, déb : 130 mm
Rear suspension
Mono-amortisseur sous la selle, déb : 86 mm

Brakes

Front brakes
Freinage 1 disque Ø 300 mm, étrier 4 pistons
Rear brakes
Freinage 1 disque Ø 292 mm, étrier 2 pistons
Front tyre
130/90-16
Rear tyre
150/80-16

Dimensions

Seat height
660.00 mm
Fuel capacity
18.90 L
Weight
304.00 kg
Dry weight
291.00 kg
New price
20 160 €

Overview

When Milwaukee decides to clean up its act, it doesn't do things by halves. The Softail lineup went through 2018 like an engine pulled from a decarbonizing bath: coming out lighter, stiffer, more honest in its promises. The Slim benefited from this thorough treatment while keeping its silhouette — that stripped-back profile bordering on austerity that gives it the look of a Bobber straight out of the nineteen-fifties.

Harley-Davidson 1745 Softail Slim FLSL

The heart of the matter is, of course, the Milwaukee-Eight. This 1745cc 45° V-twin replaces the old block to good effect, with four valves per cylinder where there used to be only two. The result shows in the numbers: 87 horsepower at 5,020 rpm and, more importantly, 145 Nm of torque from just 3,000 rpm. On a Harley, torque is everything. It's what pins you to the saddle coming out of a bend, what makes every roll-on in sixth gear as satisfying as a well-struck electric guitar chord. Up against an Indian Scout Bobber or a Triumph Bonneville T120, the Slim plays in a different displacement category, with a mechanical presence that leaves no doubt about its identity.

What truly changes beneath the skin is the chassis. The rectangular box-section steel tube frame has been completely rethought: fewer welds, fewer parts, and a 17-kilogram saving on the scales. At 304 kg fully fuelled, this is not a lightweight motorcycle, but the work done is tangible. Rigidity is improved as a result, and the riding dynamics reflect it. The rear ditches the pair of shock absorbers tucked beneath the engine in favour of a mono-shock hidden under the seat, faithful to the Softail's convincingly hardtail aesthetic. Up front, the 49mm telescopic fork with twin check valves — already proven on the Touring models — provides adequate damping for a motorcycle of this size. With 130mm of travel at the front and 86mm at the rear, it stays within reasonable limits for predominantly road use.

A seat height of 660mm makes the machine accessible to a wide range of riders, which is a genuine advantage for a Harley of this stature. The 18.9-litre tank allows comfortable stages without fixating on the next fuel stop. Top speed is capped at 170 km/h — sufficient for highway miles without being an invitation to hooliganism. This Slim is not built for track day riders or urban lane-splitters. It speaks to motorcyclists who like to ride, take their time, feel the tarmac roll beneath a 6-speed belt drive.

Harley-Davidson 1745 Softail Slim FLSL

The dark finishes added to the wire wheels, fork, and Hollywood handlebars sharpen the machine's Bobber personality. It's coherent, committed, and works visually better than some of the Scrambler or Café Racer attempts that rival manufacturers have occasionally fumbled while chasing trends. At €20,160, the Slim positions itself as a stylistically confident entry-level Harley with no compromise on character. It's not the most versatile in the family, nor the most comfortable over long distances, but it's probably the most direct in its intentions. For the rider who wants American V-twin without chrome frills, it ticks the right boxes.

Standard equipment

  • Assistance au freinage : ABS

Practical info

  • La moto est accessible aux permis : A

Indicators & positioning

Weight-to-power ratio
0.28 ch/kg
🔄
Torque / weight
0.48 Nm/kg
🔧
Volumetric power
49.2 ch/L
In category Custom / cruiser · 873-3490cc displacement (2960 motorcycles compared)
Power 86 ch Top 43%
48 ch median 77 ch 148 ch
Weight 304 kg Lighter than 53%
235 kg median 305 kg 379 kg
P/W ratio 0.28 ch/kg Top 36%
0.18 median 0.25 0.50 ch/kg

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