Cruisers

2025Harley-Davidson Fat Boy 117

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The 2025 Harley-Davidson Fat Boy 117 is an iconic cruiser built for riders seeking classic American styling with modern performance. Its muscular 117-cubic-inch engine, low 25.9-inch seat height, and wide stance make it ideal for cruiser enthusiasts who prioritize comfortable highway riding and commanding presence. Known for its distinctive design, premium Lakester wheels, and accessible power delivery, the Fat Boy appeals to both experienced riders and those transitioning to larger machines.

Capacity: 1917.4 ccm
Engine: V-Twin, four-stroke
Gearbox: 6-speed
Dry weight: 304.4 kg
Seat height: 658 mm
Power: 104.0 HP (75.9 kW) @ 4800 RPM

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Other years 2025 2026

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail5%

Cornering30%

City riding45%

Daily riding60%

Touring45%

Two-up55%

Track10%

Best for: Built for boulevard cruising and making a bold visual statement rather than for outright speed or long-distance touring.
Built for: 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.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 658mm, a rider of 68.9" with a 31" (estimated) inseam will reach the ground with both feet flat on the 2025 Harley-Davidson Fat Boy 117, with a cramped knee angle of around 70 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at 750 mm or under — Short Kings →

Find bikes that fit your height →

Range and running costs

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Units

Currency

Fuel per litre

Riding a year

Based on the maker's published fuel consumption and tank size. Real-world figures depend on how and where you ride, and the last litres of a tank are reserve. Prices shown greyed are examples - type your own.

Full specifications

Engine

Capacity: 1917.4 ccm
Power: 104.0 HP (75.9 kW) @ 4800 RPM
Torque: 170.9 Nm (17.4 kgf-m) @ 3000 RPM
Engine type: V-Twin, four-stroke
Fuel consumption: 5.00 litres/100 km (20.0 km/l)
Power/weight ratio: 0.3417 HP/kg (dry)
Bore x stroke: 103.5 x 114.0 mm
Compression: 10.3:1
Cooling system: Air
Fuel system: Injection
Starting: Electric

Transmission

Gearbox: 6-speed
Transmission type: Manual
Final drive: Belt
Clutch: Multi-plate with diaphragm spring in oil bath

Dimensions & weight

Wheelbase: 1651 mm
Overall length: 2365 mm
Overall width: 1016 mm
Seat height: 658 mm
Dry weight: 304.4 kg
Wet weight: 314.8 kg
Fuel capacity: 18.90 litres
Ground clearance: 125 mm
Oil capacity: 4.70 litres

Chassis & suspension

Front suspension: Dual-bending valve 49 mm telescopic with aluminum fork triple clamps; dual rate spring; ´beer can´ covers
Rear suspension: Hidden, free piston, coil-over monoshock; 43mm stroke; toolless hydraulic preload adjustment
Rake (fork angle): 30.0°
Trail: 104 mm

Brakes & wheels