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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.

Specifications

Dimensions

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- Length:
  
  93.1 in
- Seat height, unladen:
  
  26.6 in
- Ground clearance:
  
  4.9 in
- Trail:
  
  4.1 in
- Wheelbase:
  
  65.0 in
- Tires, front specifications:
  
  160/60R18,70V,BW
- Tires, rear specifications:
  
  240/40R18,79V,BW
- Fuel Capacity:
  
  5.0 gal
- Oil capacity:
  
  5 qt.
- Weight, as shipped:
  
  668 lbs
- Weight, in running order:
  
  694 lb
- Tire, type:
  
  Michelin® Scorcher 11 front and rear
Engine

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- Engine:
  
  Milwaukee-Eight® 117 Custom
- Bore:
  
  4.1 in
- Stroke:
  
  4.5 in
- Displacement:
  
  117.35 in³
- 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:
  
  126.1 ft-lb
- 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)
Powertrain

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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

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Disclaimer:

All advertised prices cannot be combined with other special offers, coupons, incentives including but not limited to : special low APR, Buyback/trade value and Free Parts/Accessories offers.

All advertised prices are plus all applicable tax, title, registration, documentation & prep fees, manufacturer freight, dealer and vendor-installed accessories, such as Genuine Harley-Davidson or aftermarket parts. Prices are plus the *San Diego Harley-Davidson Advantage Package, which includes, but is not limited to, power train limited warranty, appearance protection, theft protection, prep and safety reconditioning, Please contact the dealer for complete details and specific package information.