COLOR OPTIONS
2025 Fat Boy
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.and now it is better than ever with the new Milwaukee-Eight® 117 Custom V-Twin Engine.
KEY FEATURES
PAINT
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.
WHEELS
18-inch machined Lakester wheels with massive tires are covered by cutback fenders for powerful stance and commanding presence.
HEADLAMP NACELLE
The iconic Fat Boy headlight nacelle shines in bright polished chrome, accentuating the large and muscular look of the front end.
MILWAUKEE-EIGHT® 117 CUSTOM V-TWIN ENGINE
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.
RETUNED REAR SUSPENSION
Updated monoshock suspension is more comfortable while still firm and composed during aggressive riding.
TWO-INTO-TWO EXHAUST
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.
SELECTABLE RIDE MODES + FIVE-INCH ANALOG DISPLAY
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.
NEW HAND CONTROLS
Updated hand controls accommodate Cruise Control and newly integrated tech features, including Ride Modes and Traction Control.
NEW USB-C CHARGING
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.
NEW ADJUSTABLE BRAKE LEVER
Tune lever distance to maximize braking efficiency regardless of rider reach.
DETAILED SPECS
Dimensions
Length |
93.1 in. |
Width | 40 in. |
Seat Height, Unladen
| 25.9 in |
Ground Clearance
| 4.9 in. |
Trail
| 4.1 in. |
Wheelbase
| 65 in. |
Tire, Type | Michelin® Scorcher 11, front and rear |
Tires, Front Specification
| 160/60R18,70V,BW |
Tires, Rear Specification
| 240/40R18,79V,BW |
Fuel Capacity
| 5 gal. |
Oil Capacity (w/filter)
| 5 qt. |
Weight, In Running Order
| 694 lb. |
Engine
Engine | Milwaukee-Eight® 117 Custom |
Bore
| 4.075 in. |
Stroke
| 4.5 in. |
Displacement
| 117 cu in |
Compression ratio | 10.3:1 |
Fuel system | Electronic Sequential Port Fuel Injection (ESPFI) |
Exhaust | 2-into-2 staggered; catalyst in muffler |
Performance
Engine Torque Testing Method | J1349 |
Engine Torque |
126 ft-lb |
Engine Torque (rpm) | 3000 |
Horsepower |
104 HP / 77 kW @ 4800 rpm |
Lean angle, right (deg.) | 25.6 |
Lean angle, left (deg.) | 25.6 |
Fuel economy testing method | Estimated City/Hwy |
Fuel economy | 47 mpg
|
Drive Train
Primary Drive | Chain, 34/46 ratio |
Gear Ratios (overall) 1st | 9.311 |
Gear Ratios (overall) 2nd | 6.45 |
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 |
Wheels, Front Type | Machined, Lakester cast aluminum |
Wheels, Rear Type | Machined, Lakester cast aluminum |
Brakes, Rotor Type | Front and rear black, Split 7-spoke floating rotors |
Brakes, caliper type | 4-piston fixed front and 2-piston floating rear |
Electric
Lights (as per country regulation), Headlamp, Tail/Stop/Front Signal Lights | Headlamp: LED 34-watt, 915 lumen low beam, 37-watt, 915 lumen high beam; Tail/Stop/Front Signal Lights: 8W/28W |
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
|
Color Options
Billiard Gray | 1,272,000฿ |
| Vivid Black | 1,278,000฿ |
| Blue Burst | 1,280,000฿ |
Whiskey Fire/Vivid Black | 1,289,000฿ |