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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.
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Milwaukee-Eight® 117 Custom
168 Nm
315 kg
675 mm

The Milwaukee-Eight 117 feeds the Fat Boy exactly what it was built for: big torque and roll-on power that turns its solid, planted stance into something that moves with surprising quickness.

Designed to move more air through the Milwaukee-Eight 117, the Touring Intake helps maintain steady power and smooth throttle response mile after mile.

Solid Lakester cast aluminum wheels, paired with wide front and rear tires, give the Fat Boy its unmistakable steamroller stance and planted look from every angle.

With a thumb’s flick, you’ve got more command than ever. Switch between Road, Rain, and Sport modes on the fly, set cruise control when the highway stretches out, and trust built-in Rider Safety Enhancements — Cornering ABS, Traction Control, Drag-Torque Slip Control, and TPMS — to hold the line so you can focus on what’s in front of you.
| Type | Milwaukee-Eight® 117 Custom | 
| Bore | 103.5 mm | 
| Stroke | 114.3 mm | 
| Displacement | 1,923 cc | 
| Compression Ratio | 10.3:1 | 
| Fuel System | Electronic Sequential Port Fuel Injection (ESPFI) | 
| Exhaust | 2-into-2 staggered; catalyst in muffler | 
| Length | 2,365 mm | 
| Seat Height, Unladen | 675 mm | 
| Ground Clearance | 125 mm | 
| Rake (Steering Head) (Deg) | 30 | 
| Trail | 104 mm | 
| Wheelbase | 1,650 mm | 
| Tires, Front Specification | 160/60R18,70V,BW | 
| Tires, Rear Specification | 240/40R18,79V,BW | 
| Fuel Capacity | 18.9 l | 
| Oil Capacity (W/Filter) | 4.7 l | 
| Weight, In Running Order | 315 kg | 
| Engine Torque Testing Method | EC 134/2014 | 
| Engine Torque | 168 Nm | 
| Engine Torque (RPM) | 3,000 | 
| Horsepower | 103 HP / 77 kW @ 5020 rpm | 
| Lean Angle, Right (DEG.) | 25.6 | 
| Lean Angle, Left (DEG.) | 25.6 | 
| Fuel Economy Testing Method | EU 134/2014 | 
| Fuel Economy | 5.5 l/100 km | 
| Co2 Emissions Testing Method | EU 134/2014 | 
| Co2 Emissions | 128 g/km CO2 | 
| 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 | 
| 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 Aluminium | 
| Brakes, Caliper Type | 4-piston fixed front and 2-piston floating rear | 
| Lights (As Per Country Regulation), Indicator Lamps 6 | Headlamp: All LED headlamp, low and high beam with signature position lighting; Tail/Stop: Bullet-style, LED stop/tail/turn signals; Front Signal Lights: LED Bullet Turn Signals | 
| 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 | 
820 Chester Road,
Stretford,
Greater Manchester,
M32 0QL
0161 553 0504
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