2023 Harley-Davidson Fat Boy 114 Specifications

Name: 2023 Harley-Davidson Fat Boy 114
Brand: Harley-Davidson

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2023 Harley-Davidson Fat Boy 114 Overview

The 2023 Harley-Davidson Fat Boy 114 is a custom / cruiser motorcycle built around 1868 cc of displacement. Under the tank sits a V2, four-stroke engine running Double Overhead Cams/Twin Cam (DOHC) valve actuation, a compression ratio of 10.5:1. The bore and stroke measures 102 x 114 mm. 2023 Harley-Davidson Fat Boy 114 delivers 161.4 Nm @ 3000 Revolutions" of torque. From a practical standpoint, the 2023 Fat Boy 114 tips the scales at 317.1 kg, carries a 18.93-litre fuel tank, offers a seat height of 658 mm and spans a 1666 mm wheelbase. Scroll down for the complete 2023 Harley-Davidson Fat Boy 114 spec sheet covering every technical detail from suspension travel to tyre sizes.

2023 Fat Boy 114 - Pros & Cons

Strengths

Fuel injection: The fuel injection injection system delivers crisp throttle response and reliable cold starts regardless of altitude or temperature.
Accessible seat height: At 658 mm, the seat height is approachable for a wide range of rider heights and builds confidence in low-speed manoeuvring.

Considerations

Age-related wear: As with any used Fat Boy 114, a thorough pre-purchase inspection covering consumables, service history and tyres is always recommended.

Owner Experiences & Common Issues

Throttle response and fuelling

The fuel injection on the 2023 Harley-Davidson Fat Boy 114 is generally well-regarded. Some owners note a slight hesitation at small throttle openings when cold, which clears once the engine reaches operating temperature. A quick visual check of the injector connectors during routine servicing is good practice on higher-mileage examples.

Valve clearance checks

Double Overhead Cams/Twin Cam (DOHC) engines should have valve clearances checked at the manufacturer's specified interval. Owners report that clearances can tighten over time on higher-mileage bikes, leading to slight ticking from the top end. Catching it early keeps the job simple and avoids more costly remediation.

Fat Boy 114 - Buying & Maintenance Guide

What to check before buying

When inspecting a used 2023 Harley-Davidson 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 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 Fat Boy 114. Stick to the manufacturer's interval - typically every 6,000 km or once a year, whichever comes first. The sump holds 4.70 litres, so budget for that volume of quality motorcycle-specific engine oil. Always use the correct viscosity grade as specified in the owner's manual.

Fuel system care

The Fat Boy 114's fuel injection system is durable but benefits from quality fuel and the occasional use of a fuel-system cleaner additive. If the bike has been stored for more than three months, drain and replace the fuel to prevent varnish deposits in the injectors.

Valve clearance service

Check that valve clearances have been adjusted at the correct intervals on any used Fat Boy 114. This is a job many owners skip because the bike does not immediately feel wrong - but tight clearances accelerate valve seat wear. Ask for proof it has been done.

2023 Harley-Davidson Fat Boy 114 - Frequently Asked Questions

What engine does the 2023 Harley-Davidson Fat Boy 114 have?

The 2023 Harley-Davidson Fat Boy 114 uses a V2, four-stroke engine with 1868 cc of displacement.

How much does the 2023 Harley-Davidson Fat Boy 114 weigh?

The 2023 Harley-Davidson Fat Boy 114 weighs 317.1 kg. This is the manufacturer's wet figure.

How much power does the 2023 Harley-Davidson Fat Boy 114 make?

The 2023 Harley-Davidson Fat Boy 114 produces 161.4 Nm @ 3000 Revolutions" of torque.

What is the fuel tank capacity of the 2023 Harley-Davidson Fat Boy 114?

The 2023 Harley-Davidson Fat Boy 114 has a 18.93-litre fuel tank.

Is the 2023 Harley-Davidson Fat Boy 114 suitable for shorter riders?

The 2023 Harley-Davidson Fat Boy 114 has a seat height of 658 mm. This is a comfortable, accessible height for most riders.

What brakes does the 2023 Harley-Davidson Fat Boy 114 have?

The 2023 Harley-Davidson Fat Boy 114 uses Double disc. Optional ABS. 4-piston. at the front and Single disc. Optional ABS. 2-piston. at the rear.

What tyre sizes does the 2023 Harley-Davidson Fat Boy 114 use?

The front tyre size on the 2023 Harley-Davidson Fat Boy 114 is 160/60-R18.

How much oil does the 2023 Harley-Davidson Fat Boy 114 take?

The 2023 Harley-Davidson Fat Boy 114 takes 4.70 litres of engine oil at a full oil and filter change. Always verify against the dipstick or sight glass after filling.

Harley-Davidson Fat Boy 114 Spec Evolution

The Harley-Davidson Fat Boy 114 was produced across 4 model years (2020-2023). 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	2020	2021	2022	2023
Wet Weight	306.0 kg / 674.6 lbs	317.1 kg / 699.0 lbs	317.1 kg / 699.0 lbs	317.1 kg / 699.0 lbs
Dry Weight	296 kg / 652.6 lbs	304.4 kg / 671.0 lbs	304.4 kg / 671.0 lbs	304.4 kg / 671.0 lbs
Engine Detail	Milwaukee-Eight® 114 engine	Milwaukee-Eight® 114	Milwaukee-Eight® 114	Milwaukee-Eight® 114
Seat Height	710 mm / 28.0 in.	658 mm / 25.9 in.	658 mm / 25.9 in.	658 mm / 25.9 in.
Fuel Capacity	13.60 litres / 3.59 US gallons	18.93 litres / 5.00 US gallons	18.93 litres / 5.00 US gallons	18.93 litres / 5.00 US gallons
Oil Capacity (Quarts)	3.49 US quarts	4.97 US quarts	4.97 US quarts	4.97 US quarts
Oil Capacity (l)	3.30 litres	4.70 litres	4.70 litres	4.70 litres
Ground Clearance (mm)	120 mm	114 mm	114 mm	114 mm

Key Specifications

Engine

V2, four-stroke

Power

N/A

Torque

161.4 Nm (16.5 kgf-m or 119.0 ft.lbs) @ 3000 Revolutions"

Top Speed

N/A

Weight

317.1 kg / 699.0 lbs

Fuel Capacity

18.93 litres / 5.00 US gallons

Full 2023 Harley-Davidson Fat Boy 114 Specifications

Comments Security system. Cruise control.

Colours Vivid Black, Bright Billiard Blue, Gray Haze/Silver Fortune, Heirloom Red Fade

Max Torque 161.4 Nm (16.5 kgf-m or 119.0 ft.lbs) @ 3000 Revolutions"

Power-to-Weight Ratio 0.3088 HP/kg

Fuel Control Double Overhead Cams/Twin Cam (DOHC)

Engine Type V2, four-stroke

Displacement (ci) 113.99 cubic inches

Displacement (cc) 1868.0 cc

CO2 116.0 CO2 g/km. (CO2 - Carbon dioxide emission)

Bore x Stroke (mm) 102.0 x 114.0 mm

Bore x Stroke (in,) 4.0 x 4.5 inches

Engine Detail Milwaukee-Eight® 114

Fuel System Injection. Electronic Sequential Port Fuel Injection

Compression Ratio 10.5:1

Exhaust 2-into-2 staggered, catalyst in muffler

Fuel Consumption 5.00 litres/100 km (20.0 km/l or 47.04 mpg)

Starter Electric