Wide tires front and back. Classic Lakester cast aluminum wheels. The iconic steamroller stance, backed by a Milwaukee-Eight® 117 motor. LED lighting all around, Rider Safety Enhancements standard, and fine factory details that honor one of Harley-Davidson’s most legendary silhouettes. The 2026 Fat Boy is bold by design.
Disclaimer
Vehicle shown may vary visually by market and may differ from vehicles manufactured and delivered. Availability may vary by market, please see your local dealer for details.
Specifications
Length
2365 mm
Seat height, laden
658 mm
Seat height, unladen
675 mm
Ground clearance
125 mm
Rake
30
Trail
104 mm
Wheelbase
1650 mm
Tyres, front specifications
160/60R18,70V,BW
Tyres, rear specifications
240/40R18,79V,BW
Fuel capacity
18.9 l
Oil capacity
4.7
Weight, as shipped
303 kg
Weight, in running order
314.79 kg
Tyre, Type
Michelin® Scorcher 11 front and rear
Engine
Milwaukee-Eight® 117 Custom
Bore
103.5 mm
Stroke
114.3 mm
Displacement
1923 cm³
Compression ratio
10.3:1
Fuel system
Electronic Sequential Port Fuel Injection (ESPFI)
Exhaust
2-into-2 staggered; catalyst in muffler
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
Engine torque testing method
EC 134/2014
Engine torque
171 Nm
Engine Torque (rpm)
3000
Horsepower
103 HP / 77 kW @ 4800 rpm
Lean angle, right (deg.)
25.6
Lean angle, left (deg.)
25.6
Fuel economy testing method
EU 134/2014
Fuel economy
47 mpg (5 l/100 km)
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
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
Brakes, Type
Front and rear silver, Split 7-spoke floating rotors
Length
2365 mm
Seat height, laden
658 mm
Seat height, unladen
675 mm
Ground clearance
125 mm
Rake
30
Trail
104 mm
Wheelbase
1650 mm
Tyres, front specifications
160/60R18,70V,BW
Tyres, rear specifications
240/40R18,79V,BW
Fuel capacity
18.9 l
Oil capacity
4.7
Weight, as shipped
303 kg
Weight, in running order
314.79 kg
Tyre, Type
Michelin® Scorcher 11 front and rear
Engine
Milwaukee-Eight® 117 Custom
Bore
103.5 mm
Stroke
114.3 mm
Displacement
1923 cm³
Compression ratio
10.3:1
Fuel system
Electronic Sequential Port Fuel Injection (ESPFI)
Exhaust
2-into-2 staggered; catalyst in muffler
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
Engine torque testing method
EC 134/2014
Engine torque
171 Nm
Engine Torque (rpm)
3000
Horsepower
103 HP / 77 kW @ 4800 rpm
Lean angle, right (deg.)
25.6
Lean angle, left (deg.)
25.6
Fuel economy testing method
EU 134/2014
Fuel economy
47 mpg (5 l/100 km)
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
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
Brakes, Type
Front and rear silver, Split 7-spoke floating rotors