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2020 Harley-Davidson Softail Fat Boy 114 Overview
The 2020 Harley-Davidson Softail Fat Boy 114 is a custom / cruiser motorcycle built around 1868 cc of displacement. Under the tank sits a Four stroke, V-Twin, 2 Milwaukee-Eight 114, Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, 4 valves per cylinder engine, a compression ratio of 10.5:1. 2020 Harley-Davidson Softail Fat Boy 114 delivers 161 Nm @ 3000 of torque. From a practical standpoint, the 2020 Softail Fat Boy 114 tips the scales at 317 kg, carries a 18.9-litre fuel tank, offers a seat height of Unladen 675 mm and spans a 1655 mm wheelbase. Scroll down for the complete 2020 Harley-Davidson Softail Fat Boy 114 spec sheet covering every technical detail from suspension travel to tyre sizes.
2020 Softail Fat Boy 114 - Pros & Cons
Strengths
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Accessible seat height: At Unladen 675 mm, the seat height is approachable for a wide range of rider heights and builds confidence in low-speed manoeuvring.
Considerations
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Age-related wear: As with any used Softail Fat Boy 114, a thorough pre-purchase inspection covering consumables, service history and tyres is always recommended.
Owner Experiences & Common Issues
Low-speed confidence
At 317 kg, the Softail Fat Boy 114 is a substantial machine. New owners occasionally mention that slow-speed manoeuvring in car parks takes a little getting used to. Once moving, the weight disappears - but practising slow-speed exercises builds confidence quickly.
Softail Fat Boy 114 - Buying & Maintenance Guide
What to check before buying
When inspecting a used 2020 Harley-Davidson Softail Fat Boy 114, start with the basics: check the service book for oil change frequency, inspect the chain and sprockets for wear, and look for oil seepage around the engine casings and rocker covers. A cold start test is invaluable - a well-maintained Softail Fat Boy 114 should fire up cleanly and settle to a smooth idle within a few seconds.
Oil and filter changes
Regular oil changes are the single most important maintenance task on any Softail Fat Boy 114. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. Always use the correct viscosity grade as specified in the owner's manual.
2020 Harley-Davidson Softail Fat Boy 114 - Frequently Asked Questions
What engine does the 2020 Harley-Davidson Softail Fat Boy 114 have?
The 2020 Harley-Davidson Softail Fat Boy 114 uses a Four stroke, V-Twin, 2 Milwaukee-Eight 114, Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, 4 valves per cylinder engine with 1868 cc of displacement. It is air cooled.
How much does the 2020 Harley-Davidson Softail Fat Boy 114 weigh?
The 2020 Harley-Davidson Softail Fat Boy 114 weighs 317 kg. This is the manufacturer's wet figure.
How much power does the 2020 Harley-Davidson Softail Fat Boy 114 make?
The 2020 Harley-Davidson Softail Fat Boy 114 produces 161 Nm @ 3000 of torque.
What is the fuel tank capacity of the 2020 Harley-Davidson Softail Fat Boy 114?
The 2020 Harley-Davidson Softail Fat Boy 114 has a 18.9-litre fuel tank.
Is the 2020 Harley-Davidson Softail Fat Boy 114 suitable for shorter riders?
The 2020 Harley-Davidson Softail Fat Boy 114 has a seat height of Unladen 675 mm. This is a comfortable, accessible height for most riders.
What brakes does the 2020 Harley-Davidson Softail Fat Boy 114 have?
The 2020 Harley-Davidson Softail Fat Boy 114 uses 2x 300mm discs, 4 piston fixed caliper at the front and Single 292mm disc, 2 piston floating caliper at the rear.
What tyre sizes does the 2020 Harley-Davidson Softail Fat Boy 114 use?
The 2020 Harley-Davidson Softail Fat Boy 114 runs 160/60R18,70V,BW front and 240/40R18,79V,BW rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.
What gearbox does the 2020 Harley-Davidson Softail Fat Boy 114 have?
The 2020 Harley-Davidson Softail Fat Boy 114 is fitted with a 6 Speed transmission.
Harley-Davidson Softail Fat Boy 114 Spec Evolution
The Harley-Davidson Softail Fat Boy 114 was produced across 2 model years (2019-2021). The table below highlights the key specifications that changed across the production run - useful whether you are comparing years or tracking down a specific variant.
| Specification |
2019 |
2021 |
| Dry Weight |
304 kg kg / 670 lbs |
304 kg kg / 671 lbs |
| Engine Detail |
Four stroke, V-Twin, 2 Milwaukee-Eight° 114, Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, 4 valves per cylinder |
Four stroke, V-Twin, 2 Milwaukee-Eight 114, Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, 4 valves per cylinder |
| Seat Height |
675 mm / 26.4 in |
Unladen 675 mm / 26.6 in Laden 658 mm / 25.9 in |
| Displacement |
1868 cc / 113.9 cu-in |
1868 cc / 114 cu-in |
| Brakes - Front |
2x Discs 4 piston caliper |
2x 300mm discs, 4 piston fixed caliper |
| Brakes - Rear |
Single disc 2 piston caliper |
Single 292mm disc, 2 piston floating caliper |
| Suspension - Front |
Showa Inverted forks |
Dual bending valve 49mm telescopic with aluminum fork triple clamps, dual rate spring, "beer can" covers |
| Suspension - Rear |
Mono shock adjustable |
Hidden, free piston, coil-over monoshock, 43mm stroke, toolless hydraulic preload adjustment |
Key Specifications
Engine
Four stroke, V-Twin, 2 Milwaukee-Eight 114, Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, 4 valves per cylinder
Torque
161 Nm / 119 lb-ft @ 3000
Fuel Capacity
18.9 Litres / US 5.0 gal
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Full 2020 Harley-Davidson Softail Fat Boy 114 Specifications
Year
2020 - 21
Make Model
Harley Davidson Softail Fat Boy 114
Seat Height
Unladen 675 mm / 26.6 in Laden 658 mm / 25.9 in
Wheelbase
1655 mm / 65.6 in
Ground Clearance
115 mm / 4.5 in
Height
1095 mm / 43.1 in
Length
2370 mm / 93.3 in
Width
985 mm / 38.3 in
Dry Weight
304 kg kg / 671 lbs
Fuel Capacity
18.9 Litres / US 5.0 gal
Wet Weight
317 kg / 699 lbs
Displacement
1868 cc / 114 cu-in
Engine Detail
Four stroke, V-Twin, 2 Milwaukee-Eight 114, Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, 4 valves per cylinder
Bore x Stroke
102 x 114.3 mm
Compression Ratio
10.5:1
Cooling System
Air cooled
Exhaust
2-into-2 staggered, catalyst in muffler
Fuel Induction
Electronic Sequential Port Fuel Injection (ESPFI)
Ignition
Single-fire, non-wasted, map-controlled spark ignition
Lubrication
Pressurized, dry-sump with oil cooler
Starter
Electric
Clutch
Mechanical, 10 plate wet, assist & conventional
Final Drive
Belt, 32/66 ratio
Gear Ratios
1st 9.311 / 2nd 6.454 / 3rd 4.793 / 4th 3.882 / 5th 3.307 / 6th 2.79
Primary Drive
Chain, 34/46 ratio
Transmission / Drive
6 Speed
Frame Type
Mild steel, tubular frame, rectangular section backbone, stamped, cast, and forged junctions, MIG welded, aluminum forged fender supports
Suspension - Front
Dual bending valve 49mm telescopic with aluminum fork triple clamps, dual rate spring, "beer can" covers
Suspension - Rear
Hidden, free piston, coil-over monoshock, 43mm stroke, toolless hydraulic preload adjustment
Lean Angle
25.6°
Rake
30°
Swingarm
Mild steel, tubular sections, stamped x-member, forged axle junctions, MIG welded, removable belt spacer
Trail
104 mm / 4.1 in
Wheel Travel - Front
130 mm / 5.1 in
Wheel Travel - Rear
86 mm / 3.4 in
Brakes - Front
2x 300mm discs, 4 piston fixed caliper
Brakes - Rear
Single 292mm disc, 2 piston floating caliper
ABS
Standard
Tyres - Front
160/60R18,70V,BW
Tyres - Rear
240/40R18,79V,BW
Wheels - Front
18 x 4,5 in
Wheels - Rear
18 x 8.0 in
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