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
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
							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
						
						Dimensions
							Length
							2,365 mm 
						
						
							Width
							965 mm
						
						
							Overall Height
							1,120 mm 
						
						
							Seat Height, Unladen
							675 mm 
						
						
							Ground Clearance
							Static: 125 mm 
						
						
							Rake (steering head) (deg)
							30 deg
						
						
							Trail
							104 mm 
						
						
							Wheelbase
							1,650 mm 
						
						
							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
							18.9 l 
						
						
							Fuel Reserve
							3.8 l 
						
						
							Oil Capacity (w/filter)
							4.7 l 
						
						
							Weight, In Running Order
							315 kg 
						
						Performance
							Engine Torque Testing Method
							J1349
						
						
							Engine Torque
							166 Nm (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
							4.8 l/100 km 
						
						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
						
					 
				 
			