14 August. Friday 2026
Harley-Davidson Fat Boy 117 - 2026 Specifications and Reviews
The 2026 Harley-Davidson Fat Boy 117 is a heavyweight cruiser built for riders seeking aggressive styling and commanding presence on the road. Powered by the Milwaukee-Eight 117 V-twin engine delivering 104 horsepower and 127 foot-pounds of torque, it combines classic cruiser handling with modern performance and fuel injection technology. Best known for its iconic low-slung profile and imposing stance, the Fat Boy suits experienced riders who prioritize style and raw power.
2026
General information | |
| Color Options | Vivid Black, , Billiard Gray, Blue Burst, Whisky Fire/Vivid Black |
| Category | Custom / cruiser |
Engine and Transmission Specifications | |
| Starting | Electric |
| Emission | 116.0 CO2 g/km. (CO2 - Carbon dioxide emission) |
| Fuel Consumption | 5.00 litres/100 km (20.0 km/l or 47.04 mpg) |
| Clutch | Multi-plate with diaphragm spring in oil bath |
| Final Drive | Belt (final drive) |
| Gearbox | 6-speed |
| Cooling System | Air |
| Fuel Control | Double Overhead Cams/Twin Cam (DOHC) |
| Induction | Injection. Electronic Sequential Port Fuel Injection |
| Bore x Stroke | 102.0 x 114.0 mm (4.0 x 4.5 inches) |
| Compression Ratio | 10.3:1 |
| Max Torque | 170.9 Nm (17.4 kgf-m or 126.0 ft.lbs) @ 3000 RPM |
| Engine Details | Milwaukee-Eight® 117 |
| Capacity: | 1917.4 ccm (117.00 cubic inches) |
| | |
Physical measures and capacities | |
| Fuel Capacity | 18.93 litres (5.00 US gallons) |
| Wheelbase | 1651 mm (65.0 inches) |
| Ground Clearance | 114 mm (4.5 inches) |
| Overall Width | 1016 mm (40.0 inches) |
| Overall Length | 2365 mm (93.1 inches) |
| Seat Height | 658 mm (25.9 inches) If adjustable, lowest setting. |
| Power/Weight Ratio | 0.3417 HP/kg |
| Wet Weight | 314.8 kg (694.0 pounds) |
| Dry Weight | 304.4 kg (671.0 pounds) |
Harley-Davidson Fat Boy 117 dimensions and frame | |
| Wheels | Machined, Lakester cast aluminum wheels. Michelin® Scorcher® ´11´ tires. |
| Rear Brakes | Single disc. Optional ABS. 2-piston. |
| Front Brakes | Double disc. Optional ABS. 4-piston. |
| Rear Tyre | 240/40-R18 |
| Front Tyre | 160/60-R18 |
| Rear Suspension | Hidden, free piston, coil-over monoshock; 43mm stroke; toolless hydraulic preload adjustment |
| Front Suspension | Dual-bending valve 49 mm telescopic with aluminum fork triple clamps; dual rate spring; ´beer can´ covers |
| Trail | 104 mm (4.1 inches) |
| | |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Update specs | Report missing specs or required updates. |
| Lighting | All LED |
| Instruments | 5-inch analog speedometer with digital gear, odometer, fuel level, clock, trip, range and tachometer indication |
| Oil capacity | 4.70 litres (4.97 US quarts) |
| Rake (fork angle) | 30.0° |
| Exhaust system | 2-into-2 staggered, catalyst in muffler |
| Driveline | 34/46 ratio primary |
| Power | 104.0 HP (75.9 kW)) @ 4800 RPM |
| Engine type | V2, four-stroke |
| Year | 2025 |
| Motorcycle name | Harley-Davidson Fat Boy 117 |
Performance Profile & Rider Fit
104 hp
Peak Power
4.6s
0-60 mph
Best For
Track10%
City45%
Cornering30%
Daily Riding60%
Touring45%
Passenger55%
Rider Profile
| Best For | Suited to riders who already have experience handling heavy, torque-laden cruisers at low speed and in tight maneuvers. |
| Purpose | Built for boulevard cruising and making a bold visual statement rather than for outright speed or long-distance touring. |
| Rider Fit | The low seat height helps shorter riders plant their feet, but the substantial wet weight demands confident strength and balance at parking-lot speeds. |
| Character | A big, muscular, stripped-down custom cruiser with fat tires and a thumping V-twin that rewards style-conscious riders who enjoy being seen as much as riding. |
| Not Ideal For | Not a good fit for riders wanting agile cornering, off-road capability, or a sporty high-rpm ride. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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