Fat Boy® Gray Ghost

Starting at $25,399

|

Monthly as low as $394*

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Starting at

$25,399

or as low as $394 per month

At a Glance

Born a legend. Back to Raise Hell.

Some bikes make history. Others rewrite it. In 1988 and 1989, Willie G. Davidson rode early Fat Boy® prototypes into Daytona, seeking direct feedback from riders and igniting a legacy that would span generations. By 1990, the Fat Boy was born, quickly becoming one of the most legendary models in Harley-Davidson history. Now, 35 years later, the new 2025 Fat Boy® Gray Ghost charges forward, bringing that legacy full circle. Inspired by the riders who made it an icon, this tribute honors the past while the next generation keeps the fire burning.

101

HP

Horsepower

49

mpg

Fuel Economy

25.9

in.

Seat Height, Laden

122

ft-lb

Engine Torque

2025 Fat Boy Gray Ghost Beauty Shot

ICONS COLLECTION | 2025 FAT BOY® GRAY GHOST

THEN. NOW. FOREVER.

A bike built to make a statement, the Fat Boy® Gray Ghost returns to honor its past and inspire the future. 

DESIGN

The original Fat Boy® set the standard, and the all-new 2025 Fat Boy® Gray Ghost takes it further. Its legendary silver and yellow color scheme returns, now with a stunning mirror-like finish created through an advanced Physical Vapor Deposition (PVD) process, plus full LED lighting for a bold, modern edge. 

2025 Fat Boy Gray Ghost Icons Medallion

“Icons” Medallion

The Icons medallion on the rear fender speaks to this unique collection and the incredible exclusivity of this motorcycle. 

2025 Fat Boy Gray Ghost Serialization

Serialization

Limited to just 1,990, each bike is individually numbered to honor the original 1990 Fat Boy®—never to be made again. 

2025 Fat Boy Gray Ghost Tank Medallion

Tank Medallion

The original and most iconic Fat Boy® tank medallion is back with flat, straight wings in a brushed silver finish.     

2025 Fat Boy Gray Ghost Chrome Look

Chrome Look

The 2025 Fat Boy® Gray Ghost turns heads with a new PVD Reflection finish so striking, it looks like it was dipped in chrome. 

2025 Fat Boy Gray Ghost Timing cover

Timing Cover

A tribute to the past, the yellow-detailed timing cover echoes the iconic look of the original 1990 Fat Boy®. 

2025 Fat Boy Gray Ghost Seat Cover & Leather Tank Strap

Seat Cover + Leather Tank Strap

Bold, nostalgic, and iconically Fat Boy®, the two-piece seat cover and leather tank strap were designed to pay homage to the original styling.  

2025 Fat Boy Gray Ghost New All-LED Lighting

New All-LED Lighting

Classic style meets modern visibility with a powerful 7-inch LED headlamp in a polished nacelle, plus sleek LED rear lighting for stop, tail, and turn signals. 

PERFORMANCE

The Fat Boy® Gray Ghost blends classic style with modern power. The Milwaukee-Eight® 117 Custom V-Twin Engine and timeless round air cleaner give it the perfect mix of muscle and attitude. 

2025 Fat Boy Gray Ghost New Milwaukee-Eight® 117 Custom V-twin Engine

New Milwaukee-Eight® 117 Custom V-twin Engine

A more powerful Milwaukee-Eight® 117 V-twin paired with a classic-style round air cleaner, delivering strong torque for fast launches and effortless highway cruising. 

2025 Fat Boy Gray Ghost Two-Into-Two Exhaust

Two-Into-Two Exhaust

Updated design pays homage to the original Fat Boy’s two-into-two chrome pipes while delivering improved high-flow performance.

2025 Fat Boy Gray Ghost Retuned Rear Suspension

Retuned Rear Suspension

Updated monoshock suspension offers a smoother ride when you want comfort and stays firm when it’s time to get aggressive. 

INNOVATION

All the benefits of Rider Safety Enhancements and Ride Modes are hidden in classic cruiser form and managed with intuitive, ergonomic hand controls. 

2025 Fat Boy Gray Ghost Analog Display

New Ride Modes + Analog Display

The five-inch tank-mounted analog gauge nods to the original Fat Boy®, now paired with a digital display that shows key ride data, including gear position and selectable Ride Modes (Road, Rain, and Sport), so you can fine-tune your ride like never before.

2025 Fat Boy Gray Ghost Hand Controls

New Hand Controls

Ergonomic, intuitive hand controls give you quick access to Cruise Control and new selectable Ride Modes. 

2025 Fat Boy Gray Ghost PVD Finish

New PVD Reflection Finish

Once reserved for details like tank medallions and exhaust shields, PVD now takes over the Fat Boy® Gray Ghost. Its fuel tank and fenders feature this high-tech, chrome-like finish for the first time on a production Harley-Davidson®, creating a head-turning mirror effect under H-D’s signature clear coat. 

2025 Fat Boy Gray Ghost Adjustable Brake Lever

Adjustable Brake Lever

Adjustable brake lever lets riders dial in their ride to maximize braking performance and lever feel. 

Rider Safety Enhancements

Harley-Davidson’s Rider Safety Enhancements is all about giving you that extra peace of mind when things get a little unpredictable. It’s a set of smart tech that steps in during tricky situations, helping the bike handle traction while you’re accelerating, braking, or slowing down. With the Cornering Rider Safety Enhancements, the bike even adjusts for cornering, keeping things smooth and steady without you having to think twice.

ABS is designed to prevent the wheels from locking under braking and helps the rider maintain control when braking in a straight-line, urgent situation.

DSCS is designed to reduce excessive rear-wheel slip and help prevent rear-wheel lock under powertrain-induced deceleration, which typically occurs when the rider makes an abrupt downshift gear change or quickly reduces the throttle while on wet or slippery road surfaces.

The TCS is designed to keep the rear wheel from “spinning out” when the motorcycle is accelerating in a straight line and enhances rider confidence.

TPMS alerts the rider through the information display to low or high tire air pressure. Maintaining proper tire air pressure is important both for vehicle performance and tire life.

C-ABS is a variant of ABS that takes into consideration the lean angle of a two-wheel motorcycle, or the lateral acceleration of a Trike model. The brake pressure required to limit wheel slip when cornering is typically or lower than the pressure required under straight line operation.

C-TCS is designed to prevent the rear wheel from excessive spinning under acceleration when going straight or cornering.

On bikes equipped with C-DSCS, the system helps keep the rear wheel from slipping or locking up when you quickly downshift or let off the throttle, especially on wet or slippery roads. When turning, it can adjust based on how much a two-wheel bike is leaning or the side-to-side motion on a Trike.

Technical Specifications

Length
93.1 in.
Width
40 in.
Seat Height, Laden
25.9 in.
Seat Height, Unladen
26.6 in.
Ground Clearance
4.9 in.
Rake
30
Trail
4.1 in.
Wheelbase
65 in.
Tire, Type
Michelin® Scorcher 11, front and rear
Tires, Front Specification
160/60R18,70V,BW
Tires, Rear Specification
240/40R18,79V,BW
Fuel Capacity
5 gal.
Oil Capacity (w/filter)
5 qt.
Weight, In Running Order
694 lb.

Engine
Milwaukee-Eight® 117 Custom
Bore
4.075 in.
Stroke
4.5 in.
Displacement
117 cu in
Compression Ratio
10.3:1
Fuel System
Electronic Sequential Port Fuel Injection (ESPFI)
Exhaust
2-into-2 staggered; catalyst in muffler

Engine Torque Testing Method
J1349
Engine Torque
122 ft-lb
Engine Torque (rpm)
3000
Horsepower
101 HP / 75 kW @ 4800 rpm
Lean Angle, Right (deg.)
25.6
Lean Angle, Left (deg.)
25.6
Fuel Economy Testing Method
Estimated City/Hwy
Fuel Economy
49 mpg

Primary Drive
Chain, 34/46 ratio
Gear Ratios (overall) 1st
9.311
Gear Ratios (overall) 2nd
6.454
Gear Ratios (overall) 3rd
4.793
Gear Ratios (overall) 4th
3.882
Gear Ratios (overall) 5th
3.307
Gear Ratios (overall) 6th
2.79

Front Fork
Dual-bending valve 49 mm telescopic with aluminum fork triple clamps; dual rate spring; "beer can" covers
Rear Shocks
Hidden, free piston, coil-over monoshock; 43mm stroke; hydraulic preload adjustment
Wheels, Front Type
Machined, Lakester cast aluminum
Wheels, Rear Type
Machined, Lakester cast aluminum
Brakes, Caliper Type
4-piston fixed front and 2-piston floating rear
Brakes, Rotor Type
Front and rear silver, Split 7-spoke floating rotors

Lights (as per country regulation), Headlamp, Tail/Stop/Front Signal Lights
All LED headlamp, low and high beam with signature position lighting
Gauges
5-inch analog speedometer with digital gear, odometer, fuel level, ride modes, heated gear, traction control, ABS, TPMS, cruise control, clock, trip, range and tachometer indication
  • 2025 Fat Boy

    2025 FAT BOY®

    Adored since day one, the singular Fat Boy stands out with bright chrome and bold finishes, and now it is better than ever with a big Milwaukee-Eight® 117 Custom V-twin engine.

FAT BOY® THROUGH THE YEARS

Take a ride through 35 years of bold design and legacy shaped by riders. From its 1990 debut to its return in the 2025 Fat Boy Gray Ghost, see how it became one of the most iconic motorcycles of all time. 

1990 Fat Boy

1990

The Fat Boy® model debuts in one color, Fine Silver Metallic, powered by a rigid-mounted Evolution® V-Twin Engine. 

1991 Fat Boy

1991

Arnold Schwarzenegger rides a Fat Boy® motorcycle in “Terminator 2: Judgment Day.”

2000 Fat Boy

2000

The counterbalanced Twin Cam 88B engine debuts in Softail® models, including the Fat Boy®

2005 Fat Boy

2005

The limited-production CVO Fat Boy® model, powered by a Twin Cam 103 engine, begins its two-year run. Styling highlights include slammed rear suspension, steel pan-style seat, chrome pillion, and a new metal-grind finish accent with three color options.

2007 Fat Boy

2007

A year of mechanical and styling upgrades, highlighted by the new Twin-Cam 96B mated to a new 6-Speed Cruise Drive® transmission. A new chopped rear fender covers a beefy 200 mm rear tire, and new 17-inch front and rear aluminum disc wheels have “bullet hole” details. 

2016 Fat Boy Motorcycle

2016

A new Fat Boy® S model is powered by the muscular Screamin’ Eagle® Twin Cam 110 engine and finished in Dark Custom styling.

2018 Fat Boy Motorcycle

2018

The Fat Boy® model is one of eight revolutionary Softail® motorcycles based on an all-new chassis featuring monoshock rear suspension and a dual counterbalanced Milwaukee-Eight® V-Twin Engine. The styling is all new—a massive front end, a new headlight shape, and a huge 240 mm rear tire—but the bike is also quite obviously a Fat Boy®.

2025 Fat Boy Motorcycle

2025

The Fat Boy® model is one of six Cruiser motorcycles infused with new technology, elevated performance, and refreshed styling. Powered by the new Milwaukee-Eight® 117 Custom engine, the original fat-custom icon is as bold as ever.

2025 Fat Boy Gray Ghost Motorcycle

2025 Gray Ghost

Fat Boy® Gray Ghost shares technical features with the MY25 Fat Boy, including all of the updates to the entire Cruiser line + Chrome PVD paint finish, circular air cleaner, original Fat Boy seat and tank strap lacing details, and yellow accents.

EXPLORE THE SOFTAIL LINEUP

All Cruiser Models

*Financing Offer available only on new Harley-Davidson® motorcycles financed through Eaglemark Savings Bank (ESB) and is subject to credit approval. Not all applicants will qualify. This 11.14% offer is available on new Harley Davidson® motorcycles to high credit tier customers at ESB and only for up to an 84-month term. The APR may vary based on the applicant’s past credit performance and the term of the loan. For example, a 2025 Fat Boy® Gray Ghost motorcycle in Reflection with an MSRP of $25,399, a 10% down payment and amount financed of $22,859.10, 84-month repayment term, and 11.14% APR results in monthly payments of $393.09. In this example, customer is responsible for applicable taxes, title, licensing fees and any other fees or charges at the time of sale. APR is calculated according to the simple interest method. Not valid in conjunction with other offers. Other terms, conditions, and limitations may apply. Dealer participation may vary. Financing offer is subject to change or cancellation at any time. See your Harley-Davidson® Dealership for details.

2025 Fat Boy® Gray Ghost Motorcycle

A Legend Returns to Make History — Again

Some bikes make history. Others rewrite it. The 2025 Fat Boy® Gray Ghost roars onto the scene as the latest in the Icons Motorcycle Collection — a tribute to the original that changed everything. Inspired by the prototypes Willie G. Davidson himself rode into Daytona in the late ’80s, this modern legend celebrates the moment the Fat Boy® became a movement. With a powerful Milwaukee-Eight® 117 engine, a chrome-like Reflection finish, and yellow accents that nod to the 1990 original, this is more than a motorcycle: It’s a milestone.

Limited to just 1,990 serialized units worldwide, the Gray Ghost motorcycle blends heritage and horsepower in a way only Harley-Davidson can. From the updated two-into-two exhaust and redesigned monoshock suspension to all-LED lighting and ride-enhancing technology like selectable Ride Modes, the Fat Boy® Gray Ghost is equal parts tribute and takeover.

2025 Fat Boy® Gray Ghost Key Features

· Milwaukee-Eight® 117 Engine: Classic styling meets modern muscle with our most powerful Softail® engine. This bike has the Milwaukee-Eight Custom engine with the Classic air cleaner.

· PVD Reflection Finish: The fuel tank and fenders shine with a mirror-like chrome look never before seen on a production Harley.

· Yellow-Painted Accents: On the rockers, timing cover, tank medallions, and console — subtle touches, massive impact.

· All-LED Lighting: A 7" headlamp and sleek rear lighting bring contemporary visibility to timeless design.

· Analog Display + Ride Modes: Classic tank gauge with digital integration and selectable Road, Rain, and Sport modes.

· Serialization: Individually numbered — never to be made again.

Don’t miss your chance to own a piece of Harley-Davidson history. Reserve your 2025 Fat Boy® Gray Ghost motorcycle today and ride the legend forward