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Home > Motorcycle specifications > The Harley-Davidson brand > Harley-Davidson 2018 > 1870 SOFTAIL FAT BOY FLFBS 2018

Motorcycle specifications Harley-Davidson1870 SOFTAIL FAT BOY FLFBS 2018 Majority expression

Cruiser
Photo of Harley-Davidson 1870 SOFTAIL FAT BOY FLFBS 2018

presentation of the 1870 SOFTAIL FAT BOY FLFBS 2018

New face, frame evolution, improved suspension, more aggressive styling - the Fat Boy hasn't missed a beat in 2018. An archetypal Harley-Davidson design and philosophy motorcycle, this big custom is offered as standard with the Milwaukee Eight 107 (1745 cm3 ), with the option of the 114 ci (1868 cm3). It thus takes over from 2017's thundering Fat Boy S, set ablaze by the Twin Cam Screamin'Eagle of ex-CVOs.

Insurance
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A small (but definite) budget extension enables us to offer a Fat Boy that's 1 mkg more copious, plus a few extra horses. With the 114, the gripping fatness of the pistons approaches the 16 mkg mark. This vigor, combined with the weight reduction, enables the softail to deliver surprising performance. A more intimidating air filter, emblazoned with the displacement (in cubic inches), reminds the rider what kind of motorcycle he's looking at. As a bonus, this choice of engine unlocks access to two additional colors, Legend Bue Denim and Legend Blue / Vivid Black...

M.B - manufacturer's photos

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Key facts Harley-Davidson 1870 SOFTAIL FAT BOY FLFBS (2018) : What you need to know before you buy

Highlights

  • The rebellious spirit
  • Strong engine
  • Aesthetics

Weak points

  • Ground clearance
  • Tires affecting handling

Prices

Basic version
flag FranceFrance
23,960€

Bikers' reviews

of 1 reviews

Model sold in 2018 2019 2020 2021 2022 2023 2024

Replace 1800 SOFTAIL FAT BOY S FLSTFBS 2017

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1800 SOFTAIL FAT BOY S FLSTFBS 2017

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1870 SOFTAIL FAT BOY FLFBS 2019

Performance

Specifications Harley-Davidson 1870 SOFTAIL FAT BOY FLFBS 2018

Chassis
Frame : Double tubular steel cradle
Fuel capacity : 18.90 liters (4.99 US gallons)
Seat height : 675 mm (26.57 in)
Length : 2,370 mm (93.31 in)
Width : 985 mm (38.78 in)
Min height : 1,095 mm (43.11 in)
Wheelbase : 1,665 mm (65.55 in)
Dry weight : 304 kg (670 lb)
Weight when fully loaded : 317 kg (699 lb)
Front axle
Fourche telescopique Ø 41.3 mm
Braking 1 disc Ø 300 mm (11.81 in), 4-piston caliper
Front tire : 160 / 60 - 18 → Order this type of tire
Transmission
6 stage gearbox
Secondary belt drive
Rear axle
Under-seat monoshock
Braking 1 disc Ø 292 mm (11.5 in), 2-piston caliper
Rear tire : 240 / 40 - 18 → Order this type of tire
Motor
two-cylinder 45° V-shaped , 4 strokes
Injection
Cooling system : by air
tumbled
4 valves per cylinder
1,868 cc
94 ch (92.70 hp) to 5,020 rpm
15.80 mkg to 3,000 rpm
Power-to-weight ratio : 3.28 kg/ch
Weight / torque ratio : 19.24 kg/mkg
Compression : 10.5 : 1
Standard equipment
Brake assist : ABS as standard
Practical information
Take care of your motorcycle! Find all the parts and maintenance products you need to keep your bike in top condition.
motor fluid exhaust Chain kit electricity filtration braking Tires
Motorcyle equipment adapted for all members of the family and security elements.

Maintenance

12/19/25
Manufacturer recall in the following countries: France, Germany, Ireland, Slovenia.

The shock pre-load adjuster mounting bracket may break, causing the shock adjuster to come into contact with the tyre. There is a risk of a sudden loss of air pressure and therefore an increased risk of accidents and injuries.

Information source du rappel

Gallery

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Compare the 1870 SOFTAIL FAT BOY FLFBS to its competitors

Fuel consumption

Harley-Davidson 1870 SOFTAIL FAT BOY FLFBS 2018 : 5.60 liters/100km (0.42 mpg)
Indian 1811 CHIEF 2018 Undisclosed
Moto-Guzzi 1400 Eldorado 2018 Undisclosed
Triumph 1200 BONNEVILLE BOBBER 2018 : 4.10 liters/100km (0.57 mpg)

Range

Harley-Davidson 1870 SOFTAIL FAT BOY FLFBS 2018 : 338 km (210 miles)
Indian 1811 CHIEF 2018 Undisclosed
Moto-Guzzi 1400 Eldorado 2018 Undisclosed
Triumph 1200 BONNEVILLE BOBBER 2018 : 220 km (137 miles)

Torque

Harley-Davidson 1870 SOFTAIL FAT BOY FLFBS 2018 : 15.8 mkg
Indian 1811 CHIEF 2018 : 15.3 mkg
Moto-Guzzi 1400 Eldorado 2018 : 12.3 mkg
Triumph 1200 BONNEVILLE BOBBER 2018 : 10.8 mkg

Power

Harley-Davidson 1870 SOFTAIL FAT BOY FLFBS 2018 : 94 ch (92.70 hp)
Indian 1811 CHIEF 2018 : 84 ch (82.80 hp)
Moto-Guzzi 1400 Eldorado 2018 : 96 ch (94.70 hp)
Triumph 1200 BONNEVILLE BOBBER 2018 : 77 ch (75.90 hp)

Power-to-Weight ratio

Harley-Davidson 1870 SOFTAIL FAT BOY FLFBS 2018 : 3.28 kg/ch
Indian 1811 CHIEF 2018 : 4.08 kg/ch
Moto-Guzzi 1400 Eldorado 2018 : 3.48 kg/ch
Triumph 1200 BONNEVILLE BOBBER 2018 : 3 kg/ch

Torque-to-Weight ratio

Harley-Davidson 1870 SOFTAIL FAT BOY FLFBS 2018 : 19.24 kg/mkg
Indian 1811 CHIEF 2018 : 22.09 kg/mkg
Moto-Guzzi 1400 Eldorado 2018 : 26.83 kg/mkg
Triumph 1200 BONNEVILLE BOBBER 2018 : 21.11 kg/mkg

Speed

Harley-Davidson 1870 SOFTAIL FAT BOY FLFBS 2018 : over 175 km/h (108.70 mph)
Indian 1811 CHIEF 2018 : approximately 180 km/h (111.80 mph)
Moto-Guzzi 1400 Eldorado 2018 : approximately 180 km/h (111.80 mph)
Triumph 1200 BONNEVILLE BOBBER 2018 : approximately 180 km/h (111.80 mph)
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Bikers' reviews Leave a review - 1 review

French MEGATRON Model 2020
I've had this model in a 107 for 3 years now, and it's a real pleasure. about 315 kg with full tanks. low seat. extra highway footrest, with advanced controls. the handlebars fall nicely, and you're comfortable to ride. the passenger is equally comfortable, and didn't even need to change seats. having had several HDs, stage 1, here with the 107 you can really do without it. savings at the end... enormous torque that pushes on all gears. cruising speed
90 km/ h 2000 revs . at 110 km/h around 2500 rpm . just the big gumshoe at 240 (!!!) looks great .. requires a little adaptation on bends, roundabouts ... you have to force the bike a bit, as it tends not to coat the bend as much as a 180 .. in short ... the 107 is already so good that I didn't need the 114 personally. Rating : 5/5
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FAQ Your frequently asked questions about the 1870 SOFTAIL FAT BOY FLFBS 2018

What is the power of the 1870 SOFTAIL FAT BOY FLFBS 2018?
The 1870 SOFTAIL FAT BOY FLFBS 2018 develops a power of 94 ch (92.70 hp)
What is the torque of the 1870 SOFTAIL FAT BOY FLFBS 2018?
The maximum torque of the 1870 SOFTAIL FAT BOY FLFBS 2018 is 15.80 mkg to 3,000 rpm.
What is the maximum speed of the 1870 SOFTAIL FAT BOY FLFBS 2018?
The 1870 SOFTAIL FAT BOY FLFBS 2018 is capable of reaching a top speed of over 175 km/h (108.70 mph) on the track.
What is the weight of the 1870 SOFTAIL FAT BOY FLFBS 2018?
The 1870 SOFTAIL FAT BOY FLFBS 2018 has a a dry weight of 304 kg (670 lb), a weight when fully loaded of 317 kg (699 lb).
What is the fuel consumption of the 1870 SOFTAIL FAT BOY FLFBS 2018?
Average fuel consumption is estimated at 5.60 l/100km (0.42 mpg) according to the WMTC cycle.
QWhat is the seat height of the 1870 SOFTAIL FAT BOY FLFBS 2018?
To ensure good accessibility, the 1870 SOFTAIL FAT BOY FLFBS 2018 offers a minimum seat height of 675 mm (26.57 in).
What is the price of the 1870 SOFTAIL FAT BOY FLFBS 2018?
The price of the 1870 SOFTAIL FAT BOY FLFBS 2018 is 23,960€ in France

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