‹ Home › Inventory › 2026 Harley-Davidson® Fat Boy® Brilliant Red Chrome Trim

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.

Specifications

Dimensions

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- Length:
  
  2365 mm
- Seat height, unladen:
  
  675 mm
- Ground clearance:
  
  125 mm
- Trail:
  
  104 mm
- Wheelbase:
  
  1650 mm
- Tyres, front specifications:
  
  160/60R18,70V,BW
- Tyres, rear specifications:
  
  240/40R18,79V,BW
- Fuel capacity:
  
  18.9 l
- Oil capacity:
  
  4.4 l
- Weight, as shipped:
  
  303 kg
- Weight, in running order:
  
  314.79 kg
- Tyre, type:
  
  Michelin® Scorcher 11 front and rear
Engine

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- Engine:
  
  Milwaukee-Eight® 117 Custom
- Bore:
  
  103.5 mm
- Stroke:
  
  114.3 mm
- Displacement:
  
  1923 cm³
- Compression ratio:
  
  10.3:1
- Fuel system:
  
  Electronic Sequential Port Fuel Injection (ESPFI)
- Exhaust:
  
  2-into-2 staggered; catalyst in muffler
Performance

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- Engine torque testing method:
  
  EC 134/2014
- Engine torque:
  
  171 Nm
- Engine torque (RPM):
  
  3000
- Horsepower:
  
  103 HP / 77 kW @ 4800 rpm
- Lean angle, right (deg.):
  
  25.6
- Lean angle, left (deg.):
  
  25.6
- Fuel economy testing method:
  
  EU 134/2014
- Fuel economy:
  
  47 mpg (5 l/100 km)
Drivetrain

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- 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
Chassis

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- 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, type:
  
  Front and rear silver, Split 7-spoke floating rotors
- Brakes, caliper type:
  
  4-piston fixed front and 2-piston floating rear