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Fat Boy

Technical Data and Prices

starting at 26.770 € *
Billiard Gray

 

Your benefits

• Official H-D dealer
• Latest 2025 models
• Personalised advice
• Modifications from the #1 customizer
• Trade-in available
• Financing & Insurance
(including accessories available)

DESIGN

New premium paint options and tank medallion embolden the design that has defined the Fat Boy for generations.

Paint
The best factory paint in the world covers a classic rounded gas tank that is finished with a new, bold tank medallion.

Wheels
457mm 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 engine, a high-flowing, two-into-two exhaust system, and improved suspension.

Milwaukee-Eight® 117 Custom 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.

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.

127mm Analog Display
Analog gauge is clear and easy to read, while an integrated digital display shows key information like Ride Modes.

Hand Controls
Updated hand controls accommodate Cruise Control and newly integrated tech features, including Ride Modes and Traction Control.

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.

Adjustable Brake Lever
Tune lever distance to maximize braking efficiency regardless of rider reach.

Gallery

Milwaukee-Eight 117 Custom

Detailed Specs
Dimensions
Length
2,365 mm
Width
965 mm
Seat Height, Unladen
675 mm
Ground Clearance
125 mm
Rake
30
Trail
104 mm
Wheelbase
1,650 mm
Tire, Type
Michelin® Scorcher 11, front and rear
Tires, Front Specification
160/60R18,70V,BW
Tires, Rear Specification
240/40R18,79V,BW
Fuel Capacity
18.9 l
Oil Capacity (w/filter)
4.7 l
Weight, In Running Order
315 kg
Engine
Engine
Milwaukee-Eight® 117 Custom
Bore
103.5 mm
Stroke
114.3 mm
Displacement
1,923 cc
Compression Ratio
10.3:1
Fuel System
Electronic Sequential Port Fuel Injection (ESPFI)
Exhaust
2-into-2 staggered; catalyst in muffler
Performance
Engine Torque Testing Method
EC 134/2014
Engine Torque
168 Nm
Engine Torque (rpm)
3000
Horsepower
103 HP / 77 kW @ 5020 rpm
Lean Angle, Right (deg.)
25.6
Lean Angle, Left (deg.)
25.6
Fuel Economy Testing Method
EU 134/2014
Fuel Economy
5.5 l/100 km
CO2 Emissions Testing Method
EU 134/2014
CO2 Emissions
128 g/km CO2
Drive Train
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
Chassis
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
Electric
Lights (as per country regulation), Headlamp, Tail/Stop/Front Signal Lights
Headlamp: All LED headlamp, low and high beam with signature position lighting; 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
Infotainment
Rider Safety Enhancements
Anti-lock Brake System (ABS)
Included: 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.
Traction Control System (TCS)
Included: 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.
Drag-torque Slip Control System (DSCS)
Included: 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.
Tire Pressure Monitoring System (TPMS)
Included: 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.
Cornering Enhanced Anti-lock Brake System (C-ABS)
Included: 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.
Cornering Enhanced Traction Control System (C-TCS)
Included: C-TCS is designed to prevent the rear wheel from excessive spinning under acceleration when going straight or cornering.
Cornering Drag-Torque Slip Control System (C-DSCS)
Included: 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.

2. Range estimates are made in accordance with WMTC 134/2014 Annex VII Appendix 3.3 and are based on the expected performance of a fully charged battery under specific operating conditions. Actual range will depend on driving habits, weather conditions and equipment. The range shown is at maximum power setting and minimum regeneration.

3. Recommended 91 octane (95 RON) or higher fuel (R+M)/2.

4. Values shown are nominal. Performance may vary by country and region.

7. Price quoted is recommended retail price in € ex works including 19% VAT plus transport and set-up fee: €560 for Sport, Cruiser, Grand American Touring, Adventure Touring and LiveWire, €1260 for Trike. The total price includes 4 years warranty: 2 years manufacturer’s warranty and 2 years extended warranty. (The warranty is provided by the authorised dealer named and signed in the warranty agreement and insured by CG Car-Garantie Versicherungs-AG. It is subject to the applicable warranty conditions). Binding final price including all additional charges is available from your authorised Harley-Davidson® dealer.

9. Standard and optional wheels may vary by country and region.

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    Kämmerer
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    Timo Kämmerer

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    02852 - 6777-38
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    Hutmacher

    Stefan Hutmacher

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    Julian Segler

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    Dirk Gerlach

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    0049 2852 - 6777-55
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    Ingo Dockhorn

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    0049 2852 - 6777-54
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