2025 Harley-Davidson® Fat Boy® Gray Ghost Base
Exterior Colors:
- Year 2025
- Make Harley-Davidson®
- Model Fat Boy® Gray Ghost
- Engine Milwaukee-Eight® 117 Custom
2025 Harley-Davidson® Fat Boy® Gray Ghost
Features may include:
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.
“Icons” Medallion
- The Icons medallion on the rear fender speaks to this unique collection and the incredible exclusivity of this motorcycle.
Serialization
- Limited to just 1,990, each bike is individually numbered to honor the original 1990 Fat Boy®—never to be made again.
Tank Medallion
- The original and most iconic Fat Boy® tank medallion is back with flat, straight wings in a brushed silver finish.
- 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.
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.
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.
Retuned Rear Suspension
- Updated monoshock suspension offers a smoother ride when you want comfort and stays firm when it’s time to get aggressive.
- All the benefits of Rider Safety Enhancements and Ride Modes are hidden in classic cruiser form and managed with intuitive, ergonomic hand controls.
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.
New Hand Controls
- Ergonomic, intuitive hand controls give you quick access to Cruise Control and new selectable Ride Modes.
New PVD Reflection Finish
- Ergonomic, intuitive hand controls give you quick access to Cruise Control and new selectable Ride Modes.
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.
Engine
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
Dimensions
Length
93.1 in.
Width
40 in.
Overall Height
44.1 in.
Seat Height, Laden
25.9 in.
Seat Height, Unladen
26.6 in.
Ground Clearance
Static: 4.9 in.
Rake (steering head) (deg)
30 deg
Trail
4.1 in.
Wheelbase
65 in.
Front Tire
Michelin® Scorcher 11
Rear Tire
Michelin® Scorcher 11
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.
Performance
Engine Torque Testing Method
J1349
Engine Torque
122 ft-lb
Engine Power
101 HP / 75 kW @ 4800 rpm
Engine Torque (rpm)
3,000
Lean Angle, Right (deg.)
25.6
Lean Angle, Left (deg.)
25.6
Fuel Economy: Combined City/Hwy
49 mpg | Testing Method: Estimated City/Hwy
Drivetrain
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
Wheel Type, Front
Machined, Lakester cast aluminum
Wheels Type, Rear
Machined, Lakester cast aluminum
Brakes, Caliper Type
4-piston fixed front and 2-piston floating rear
Brake System Type
Rotors: Front and rear silver, Split 7-spoke floating rotors
Electric
Lighting
Lights (as per country regulation), Headlamp: All LED headlamp, low and high beam with signature position lighting | Lights (as per country regulation), Tail/Stop: Bullet-style, LED stop/tail/turn signals | Lights (as per country regulation), Front Signal: Lights LED Bullet Turn Signals | Lights, Rear Turn Signals: 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