2013 Harley-Davidson Softail Fat Boy Specifications

Name: 2013 Harley-Davidson Softail Fat Boy
Brand: Harley-Davidson

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2013 Harley-Davidson Softail Fat Boy Overview

The 2013 Harley-Davidson Softail Fat Boy is a custom / cruiser motorcycle built around 1690 cc of displacement. Under the tank sits a Four stroke, V-Twin, Twin Cam 103B Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, two valves per cylinder, with Integrated Oil-Cooler engine, a compression ratio of 9.6:1. 2013 Harley-Davidson Softail Fat Boy delivers 134 Nm @ 3500 rpm of torque. From a practical standpoint, the 2013 Softail Fat Boy tips the scales at 329 kg, carries a 18.9-litre fuel tank, offers a seat height of Laden 635 mm and spans a 1635 mm wheelbase. Scroll down for the complete 2013 Harley-Davidson Softail Fat Boy spec sheet covering every technical detail from suspension travel to tyre sizes.

2013 Softail Fat Boy - Pros & Cons

Strengths

Accessible seat height: At Laden 635 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 Softail Fat Boy, a thorough pre-purchase inspection covering consumables, service history and tyres is always recommended.

Owner Experiences & Common Issues

Low-speed confidence

At 329 kg, the Softail Fat Boy 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 - Buying & Maintenance Guide

What to check before buying

When inspecting a used 2013 Harley-Davidson Softail Fat Boy, 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 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. 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.

2013 Harley-Davidson Softail Fat Boy - Frequently Asked Questions

What engine does the 2013 Harley-Davidson Softail Fat Boy have?

The 2013 Harley-Davidson Softail Fat Boy uses a Four stroke, V-Twin, Twin Cam 103B Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, two valves per cylinder, with Integrated Oil-Cooler engine with 1690 cc of displacement. It is air cooled.

How much does the 2013 Harley-Davidson Softail Fat Boy weigh?

The 2013 Harley-Davidson Softail Fat Boy weighs 329 kg. This is the manufacturer's wet figure.

How much power does the 2013 Harley-Davidson Softail Fat Boy make?

The 2013 Harley-Davidson Softail Fat Boy produces 134 Nm @ 3500 rpm of torque.

What is the fuel tank capacity of the 2013 Harley-Davidson Softail Fat Boy?

The 2013 Harley-Davidson Softail Fat Boy has a 18.9-litre fuel tank.

Is the 2013 Harley-Davidson Softail Fat Boy suitable for shorter riders?

The 2013 Harley-Davidson Softail Fat Boy has a seat height of Laden 635 mm. This is a comfortable, accessible height for most riders.

What brakes does the 2013 Harley-Davidson Softail Fat Boy have?

The 2013 Harley-Davidson Softail Fat Boy uses 2x Discs 4 piston caliper at the front and Single disc 2 piston caliper at the rear.

What tyre sizes does the 2013 Harley-Davidson Softail Fat Boy use?

The 2013 Harley-Davidson Softail Fat Boy runs 140/75R17 67V front and 200/55R17 78V rear tyres. A good selection of sport, touring and all-weather rubber is available in these sizes.

What gearbox does the 2013 Harley-Davidson Softail Fat Boy have?

The 2013 Harley-Davidson Softail Fat Boy is fitted with a 6 Speed transmission.

Harley-Davidson Softail Fat Boy Spec Evolution

The Harley-Davidson Softail Fat Boy was produced across 6 model years (2013-2018). 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	2013	2014	2015	2016	2017	2018
Wet Weight	329 kg / 725 lbs	329 kg / 725 lbs	329 kg / 725 lbs	331 kg / 730 lbs	332 kg / 733 lbs	317 kg / 699 lbs
Dry Weight	-	-	-	320 kg / 705 lbs	319 kg / 704 lbs	304 kg kg / 670 lbs
Engine Detail	Four stroke, V-Twin, Twin Cam 103B Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, two valves per cylinder, with Integrated Oil-Cooler	Four stroke, V-Twin, Twin Cam 103B Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, two valves per cylinder, with Integrated Oil-Cooler	Four stroke, V-Twin, Twin Cam 103B Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, two valves per cylinder, with Integrated Oil-Cooler	Four stroke, V-Twin, Twin Cam 103B Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, two valves per cylinder, with Integrated Oil-Cooler	Four stroke, V-Twin, Twin Cam 103B Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, two valves per cylinder, with Integrated Oil-Cooler	Four stroke, V-Twin, Milwaukee-Eight 107, Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, 4 valves per cylinder
Seat Height	Laden 635 mm / 25.0 in Unladen 690 mm / 27.1 in	Laden 635 mm / 25.0 in Unladen 690 mm / 27.1 in	Laden 635 mm / 25.0 in Unladen 690 mm / 27.1 in	Laden 635 mm / 25.0 in Unladen 690 mm / 27.1 in	Laden 635 mm / 25.0 in Unladen 690 mm / 27.1 in	675 mm / 26.4 in
Fuel Capacity	18.9 Litres / 5.0 US gal	18.9 Litres / 5.0 US gal	18.9 Litres / 5.0 US gal	18.9 Litres / US 5.0 gal	18.9 Litres / US 5.0 gal	18.9 Litres / 5.0 US gal
Displacement	1690 cc / 103.1 cub in.	1690 cc / 103.1 cub in.	1690 cc / 103.1 cub in.	1690 cc / 103.1 cub in.	1690 cc / 103.1 cub in.	1746 cc / 107 cub in
Wheelbase	1635 mm / 64.2 in	1635 mm / 64.2 in	1635 mm / 64.2 in	1635 mm / 64.2 in	1630 mm / 64.2 in	1655 mm / 65.6 in
Ground Clearance	-	-	-	130 mm / 5.1 in	120 mm / 4.7 in	115 mm / 4.5 in

Key Specifications

Engine

Four stroke, V-Twin, Twin Cam 103B Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, two valves per cylinder, with Integrated Oil-Cooler

Power

N/A

Torque

134 Nm / 13.7 kgf-m / 98.8 ft. lbs @ 3500 rpm

Top Speed

N/A

Weight

329 kg / 725 lbs

Fuel Capacity

18.9 Litres / 5.0 US gal

Full 2013 Harley-Davidson Softail Fat Boy Specifications

Year 2013

Make Model Harley Davidson Softail Fat Boy

Max Torque 134 Nm / 13.7 kgf-m / 98.8 ft. lbs @ 3500 rpm

Displacement 1690 cc / 103.1 cub in.

Engine Detail Four stroke, V-Twin, Twin Cam 103B Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, two valves per cylinder, with Integrated Oil-Cooler

Bore x Stroke 98.4 x 111.1 mm

Compression Ratio 9.6:1

Cooling System Air cooled

Exhaust Chrome, over/under shotgun exhaust with dual mufflers

Fuel Induction Electronic Sequential Port Fuel Injection (ESPFI)

Ignition Single-fire, non-wasted, map-controlled spark ignition

Starter Electric