2025 Harley Davidson Softail Fat Boy 117

Make Model	Harley Davidson Softail Fat Boy 117
Year	2025
Engine	Four stroke, V-Twin, 2 Milwaukee-Eight 117 custom, Pushrod-operated, overhead valves with hydraulic, self-adjusting lifters, 4 valves per cylinder
Capacity	1923 cc / 117 cu in
Bore x Stroke	103.5 x 114.3 in
Cooling System	Air cooled
Compression Ratio	10.3:1
Exhaust	2-into-2 staggered, catalyst in muffler
Induction	Electronic Sequential Port Fuel Injection (ESPFI)
Lubrication	Pressurized, dry-sump with oil cooler
Ignition	Single-fire, non-wasted, map-controlled spark ignition
Starting	Electric
Max Power	77 kW / 104Hp @ 4800 rpm
Max Torque	171 Nm / 126 lb-ft @ 3000 rpm
Clutch	Mechanical, 10 plate wet, assist & conventional
Transmission	6 Speed
Primary Drive	Chain, 34/46 ratio
Final Drive	Belt, 32/66 ratio
Gear Ratio	1st 9.311 / 2nd 6.454 / 3rd 4.793 / 4th 3.882 / 5th 3.307 / 6th 2.79
Lean Angle, Left	25.6º
Lean Angle, Right	25.6º
Frame	Mild steel, tubular frame, rectangular section backbone, stamped, cast, and forged junctions, MIG welded, aluminum forged fender supports
Swingarm	Mild steel, tubular sections, stamped x-member, forged axle junctions, MIG welded, removable belt spacer
Front Suspension	Dual bending valve 49mm telescopic with aluminum fork triple clamps, dual rate spring, "beer can" covers
Front Wheel Travel	130 mm / 5.1 in
Rear Suspension	Hidden, free piston, coil-over monoshock, 43mm stroke, hydraulic preload adjustment
Rear Wheel Travel	86 mm / 3.4 in
Front Brakes	2 x 300mm discs, 4 piston fixed caliper
Rear Brakes	Single 292mm disc, 2 piston floating caliper
ABS	Standard
Wheels	Machined, Lakester cast aluminum
Front Wheel	18 x 4,5 in
Rear Wheel	18 x 8.0 in
Front Tyre	160/60R18,70V,BW
Rear Tyre	240/40R18,79V,BW
Rake (steering head)	30°
Trail	104 mm / 4.1 in
Dimensions	Length: 2365 mm / 93.1 in Width: 965 mm / 40.0 in Height: 1120 mm / 44.1 in
Wheelbase	1650 mm / 65 in
Ground Clearance	125 mm / 4.9 in
Seat Height	Unladen 675 mm / 26.6 in Laden 658 mm / 25.9 in
Dry Weight	303 kg / 668 lbs
Wet Weight	315 kg / 694 lbs
Fuel Capacity	18.9 Litres / US 5.0 gal

From Harley website:

Adored since day one, the singular Fat Boy stands out with bright chrome and bold finishes, and now it is better than ever with the new Milwaukee-Eight® 117 Custom V-Twin Engine. 

Design
Fresh paint options and a new tank medallion bring a modern edge to the enduring design that defines the Fat Boy®, marked by its wide wheels, muscular stance, and classic Harley silhouette.
World-class factory paint wraps a classic five-gallon tank, now featuring a bold new medallion that’s designed to stand out no matter how far you ride.

18-inch machined Lakester wheels with massive tires are covered by cutback fenders for powerful stance and commanding presence.

The iconic Fat Boy headlight nacelle shines in bright polished chrome, accentuating the large and muscular look of the front end.

Performance
The 2025 Fat Boy is more fun than ever before with a new, high-performance Milwaukee-Eight® 117 Custom V-Twin Engine, a high-flowing, two-into-two exhaust system, and improved suspension.
Milwaukee-Eight® 117 Custom V-Twin Engine delivers sound, feel, and all the power you need for effortless long-mile highway cruising or exhilarating in-town performance.

Updated monoshock suspension is more comfortable while still firm and composed during aggressive riding.

A key feature of Fat Boy design, the two-into-two exhaust has been updated for high-flowing performance and a rich V-twin sound.

Innovation
Classic form hides a suite of modern tech made to add comfort and convenience, but never take attention away from the ride.

Five-inch display features a large, easy-to-read analog gauge positioned above an LCD screen. Hand controls enhance ergonomics and give you quick access to new selectable Ride Modes (Road, Rain, Sport), so you can fine-tune your ride like never before.

Updated hand controls accommodate Cruise Control and newly integrated tech features, including Ride Modes and Traction Control.

USB-C charging keeps your devices powered, so you can ride farther while using navigation, listening to music, and staying connected through your Bluetooth® headset.

Tune lever distance to maximize braking efficiency regardless of rider reach.

Rider Safety Enhancements
Harley-Davidson’s Rider Safety Enhancements is all about giving you that extra peace of mind when things get a little unpredictable. It’s a set of smart tech that steps in during tricky situations, helping the bike handle traction while you’re accelerating, braking, or slowing down. With the Cornering Rider Safety Enhancements, the bike even adjusts for cornering, keeping things smooth and steady without you having to think twice.
- Anti-lock Brake System (ABS)
- Traction Control System (TCS)
- Drag-Torque Slip Control System (DSCS)
- Tire Pressure Monitoring System (TPMS)
- Cornering Enhanced Anti-lock Brake System (C-ABS)
- Cornering Enhanced Traction Control System (C-TCS)
- Cornering Drag-Torque Slip Control System (C-DSCS)