2025 Harley-Davidson Fat Boy Overview
The 2025 Fat Boy packs bigger muscle, sharper style, and that unmistakable stance that has owned the road for decades.
Starting at
$22,599
or as low as $349 per month
New Milwaukee-Eight® 117 Custom V-twin Engine
New Intake
Wheels
New Selectable Ride Modes
New All-LED Lighting
DESIGN
Fresh paint options and a new tank medallion bring a modern edge to the enduring design that defines the Fat Boy®, marked by its wide wheels, muscular stance, and classic Harley silhouette.
PAINT
World-class factory paint wraps a classic five-gallon tank, now featuring a bold new medallion that’s designed to stand out no matter how far you ride.
WHEELS
18-inch machined Lakester wheels with massive tires are covered by cutback fenders for powerful stance and commanding presence.
HEADLAMP NACELLE
The iconic Fat Boy headlight nacelle shines in bright polished chrome, accentuating the large and muscular look of the front end.
PERFORMANCE
The 2025 Fat Boy is more fun than ever before with a new, high-performance Milwaukee-Eight® 117 Custom V-Twin Engine, a high-flowing, two-into-two exhaust system, and improved suspension.
NEW MILWAUKEE-EIGHT® 117 CUSTOM V-TWIN ENGINE
Milwaukee-Eight® 117 Custom V-Twin Engine delivers sound, feel, and all the power you need for effortless long-mile highway cruising or exhilarating in-town performance.
RETUNED REAR SUSPENSION
Updated monoshock suspension is more comfortable while still firm and composed during aggressive riding.
TWO-INTO-TWO EXHAUST
A key feature of Fat Boy design, the two-into-two exhaust has been updated for high-flowing performance and a rich V-twin sound.
INNOVATION
Classic form hides a suite of modern tech made to add comfort and convenience, but never take attention away from the ride.
NEW SELECTABLE RIDE MODES + FIVE-INCH ANALOG DISPLAY
Five-inch display features a large, easy-to-read analog gauge positioned above an LCD screen. Hand controls enhance ergonomics and give you quick access to new selectable Ride Modes (Road, Rain, Sport), so you can fine-tune your ride like never before.
NEW HAND CONTROLS
Updated hand controls accommodate Cruise Control and newly integrated tech features, including Ride Modes and Traction Control.
NEW USB-C CHARGING
USB-C charging keeps your devices powered, so you can ride farther while using navigation, listening to music, and staying connected through your Bluetooth® headset.
NEW ADJUSTABLE BRAKE LEVER
Tune lever distance to maximize braking efficiency regardless of rider reach.
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 Motorcycle handle traction while you’re accelerating, braking, or slowing down. With the Cornering Rider Safety Enhancements, the Motorcycle 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.
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.
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.
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 motorcycles 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 Motorcycle is leaning or the side-to-side motion on a Trike.
GALLERY
Technical Specifications
Length
93.1 in.
Width
40 in.
Seat Height, Laden
25.9 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
126 ft-lb
Engine Torque (rpm)
3000
Horsepower
104 HP / 77 kW @ 4800 rpm
Lean Angle, Right (deg.)
25.6
Lean Angle, Left (deg.)
25.6
Fuel Economy Testing Method
Estimated City/Hwy
Fuel Economy
47 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
Headlamp: All LED, low beam, high beam and signature position lamp; Tail/Stop: Bullet-style, LED stop/tail/turn signals; Front Signal Lights: LED Bullet Turn Signals
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 CRUISER
EXPLORE THE 2025 LINEUP
Street Bob®
Starting at $15,999
Low Rider® S
Starting at $19,999
Low Rider® ST
Starting at $24,199
Breakout®
Starting at $23,099
Heritage Classic
Starting at $22,999
Fat Boy® Gray Ghost
Starting at $25,399
OFFERS
Ride out on select new 2025 Cruiser and Street Glide models with no money down/2.99% APR + $1,000 Trade Assistance. Plus, $500 Hero Cash for Military & First Responders.
Expires June 30th, 2026
Earn $100 in H-D® Gift Cards + Low Intro APR. With the H-D® Visa card, you’ll earn points for every eligible net purchase you make on the card. For every 2,500 points you earn, you can redeem for a $25 H-D® Gift Card to spend at Harley® dealerships and h-d.com/store. Plus, earn a chance to win a motorcycle each month in Free Ride Sweepstakes entries with double the entries if you’re a H.O.G.® member.
EXPLORE ALL MOTORCYCLES
*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 10.99% 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® motorcycle in Billiard Gray with an MSRP of $22,599, a 10% down payment and amount financed of $20,339.10, 84-month repayment term, and 10.99% APR results in monthly payments of $348.15. 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.
A Bold New Era for the Harley-Davidson® Fat Boy® Cruiser
A Bold New Era for the Harley-Davidson® Fat Boy® Cruiser
The 2025 Harley-Davidson® Fat Boy® Cruiser charges into the future with unmatched power and a commanding road presence. The latest model is all about bold aesthetics, refined comfort, and next-level performance, making it a true icon of the Harley-Davidson lineup. Whether you're a veteran rider or someone looking to upgrade, the Fat Boy® cruiser's steamroller stance and unmistakable headlamp nacelle will make every journey unforgettable.
With a refreshed Milwaukee-Eight® 117 powertrain, recalibrated suspension, and high-performance Michelin® Scorcher® 11 tires, the 2025 Fat Boy® Cruiser offers an unbeatable ride for those who value strength and stability.
Power and Design, Redefined for the Road
The Fat Boy® motorcycle's 2025 redesign blends nostalgia with innovation. Its dual-bending valve forks provide confident handling, while the under-seat hydraulic pre-load suspension ensures a smooth ride regardless of load or road conditions. Featuring a single front brake with a 300mm disc and a rear brake with a 292mm disc, this motorcycle is ready for anything.
A massive new 7.0-inch LED headlamp, two-tone trajectory paint in Vivid Black and Whiskey Fire, and signature chrome details complete the look. Every inch of the Fat Boy® motorcycle is designed for an imposing road presence that is unmistakably Harley-Davidson.
Feel the thrill of the open road and command attention with the 2025 Fat Boy® motorcycle. Request a quote today!