2019 Harley-Davidson Softail Fat Boy 114 Specifications

Name: 2019 Harley-Davidson Softail Fat Boy 114
Brand: Harley-Davidson

Custom / cruiser • Specs last verified 13 July 2026

No images available

Tap to enlarge

2019 Harley-Davidson Softail Fat Boy 114 Overview

Harley-Davidson Softail Fat Boy 114 is a custom / cruiser motorcycle, displacing 1868 cc. Power comes from 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. On the performance side, it delivers 155 Nm @ 3,500 of torque. On the road, the 2019 Softail Fat Boy 114 tips the scales at 317 kg, carries a 18.9-litre fuel tank, offers a seat height of 675 mm and spans a 1655 mm wheelbase. That's roughly 16.4 kg heavier than the average custom / cruiser motorcycle in our database. The full 2019 Harley-Davidson Softail Fat Boy 114 spec sheet below covers every technical detail, from suspension travel to tyre sizes.

2019 Softail Fat Boy 114 - Pros & Cons

Strengths

Fuel injection: Fuel injection means consistent cold starts and clean throttle response without the fussiness of a carbureted setup.
Accessible seat height: A 675 mm seat height keeps this manageable for most riders, which helps confidence at parking-lot speeds.
Large fuel range: A 18.9-litre tank means fewer stops on longer rides - a genuine plus for touring or a lengthy daily commute.
Low-maintenance final drive: Running Belt final drive cuts out the regular chain cleaning and tensioning that most bikes need.

Considerations

Age-related wear: Nothing specific stands out as a weak point on the Softail Fat Boy 114 - the usual used-bike checks (service history, consumables, tyres) apply.

Wear Points & Servicing Notes

Heat management in traffic

Because the Softail Fat Boy 114 relies on airflow rather than a coolant jacket, expect noticeably more radiant heat at low speed and in traffic. It's inherent to air cooling, and ventilated gear largely offsets it.

Fuelling & injector care

The Fuel System Electronic Sequential Port Fuel Injection (ESPFI) on the Softail Fat Boy 114 needs little beyond good fuel and periodic use of an injector-cleaner additive - no jetting or float-bowl maintenance to worry about.

Brake disc and pad wear

Braking up front comes from 2x Discs 4 piston caliper - solid stopping power, with disc and pad wear best checked on the same schedule as tyre changes.

Suspension condition on used examples

The Softail Fat Boy 114's suspension runs Showa Inverted forks at the front. The rear uses Mono shock adjustable. Fork-seal condition and rear linkage play are the two things worth checking before buying used.

Final drive maintenance

The Softail Fat Boy 114 runs belt final drive: no lubrication or frequent adjustment like a chain, though belt tension and wear are worth a periodic look.

Handling the weight at a standstill

317 kg puts the Softail Fat Boy 114 toward the heavier end of its class. It's most noticeable at walking pace; once underway the mass settles into the handling rather than fighting it.

Softail Fat Boy 114 - Buying & Maintenance Guide

What to check before buying

Before handing over money for a used 2019 Harley-Davidson Softail Fat Boy 114, cover the fundamentals: service book and oil change history, chain and sprocket wear, and any sign of oil weeping around the casings. Cold-starting it yourself tells you a lot - a healthy Softail Fat Boy 114 should catch quickly and settle into a smooth idle.

Oil and filter changes

Nothing protects a Softail Fat Boy 114's engine like disciplined oil changes - stay on the manufacturer's schedule (roughly every 6,000 km or annually). Match the viscosity grade to what the owner's manual specifies, not what's cheapest.

Fuel system care

Fuel injection on the Softail Fat Boy 114 needs little attention beyond decent fuel and an occasional system-cleaner additive. Anything left standing for three months or more should have its fuel drained and replaced before it varnishes the injectors.

2019 Harley-Davidson Softail Fat Boy 114 - Frequently Asked Questions

What engine does the 2019 Harley-Davidson Softail Fat Boy 114 have?

The 2019 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 2019 Harley-Davidson Softail Fat Boy 114 weigh?

The 2019 Harley-Davidson Softail Fat Boy 114 weighs 317 kg. This is the manufacturer's wet figure.

How much power does the 2019 Harley-Davidson Softail Fat Boy 114 make?

The 2019 Harley-Davidson Softail Fat Boy 114 produces 155 Nm @ 3,500 of torque.

What is the fuel tank capacity of the 2019 Harley-Davidson Softail Fat Boy 114?

The 2019 Harley-Davidson Softail Fat Boy 114 has a 18.9-litre fuel tank. At around 5-6 litres per 100 km, that is roughly 315-377 km between stops.

Is the 2019 Harley-Davidson Softail Fat Boy 114 suitable for shorter riders?

The 2019 Harley-Davidson Softail Fat Boy 114 has a seat height of 675 mm. This is a comfortable, accessible height for most riders.

What brakes does the 2019 Harley-Davidson Softail Fat Boy 114 have?

The 2019 Harley-Davidson Softail Fat Boy 114 uses 2x Discs 4 piston caliper at the front and Single disc 2 piston caliper at the rear.

What tyre sizes does the 2019 Harley-Davidson Softail Fat Boy 114 use?

The 2019 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 2019 Harley-Davidson Softail Fat Boy 114 have?

The 2019 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

Power

Not published by manufacturer

Torque

155 Nm / 114.3 lb-ft @ 3,500

Top Speed

Not published by manufacturer

Weight

317 kg / 699 lbs

Fuel Capacity

18.9 Litres / US 5.0 gal

Full 2019 Harley-Davidson Softail Fat Boy 114 Specifications

Year 2018 - 19

Make Model Harley Davidson Softail Fat Boy 114

Seat Height 675 mm / 26.4 in

Wheelbase 1655 mm / 65.6 in

Ground Clearance 115 mm / 4.5 in

Length 2370 mm / 93.3 in

Dry Weight 304 kg kg / 670 lbs

Fuel Capacity 18.9 Litres / US 5.0 gal

Oil Capacity 4.7 Litres / 5.0 US qt

Wet Weight 317 kg / 699 lbs

Max Torque 155 Nm / 114.3 lb-ft @ 3,500

Displacement 1868 cc / 113.9 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 Fuel System 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 Multi-plate, wet

Final Drive Belt

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

Suspension - Front Showa Inverted forks

Suspension - Rear Mono shock adjustable

Lean Angle 25.6°

Rake 30°

Trail 104 mm / 4.1 in

Brakes - Front 2x Discs 4 piston caliper

Brakes - Rear Single disc 2 piston caliper

Tyres - Front 160/60R18,70V,BW

Tyres - Rear 240/40R18,79V,BW

Wheels - Front Machined, Lakester cast aluminum

Wheels - Rear Machined, Lakester cast aluminum

Specifications are compiled from manufacturer documentation and cross-referenced technical sources, and corrected on an ongoing basis. Spot an error? Let us know.