Fat Boy 114

2020 Harley-Davidson Fat Boy 114 Technical Analysis & Specification Breakdown

Built around Harley-Davidson's custom - cruiser motorcycle platform, the 2020 Harley-Davidson Fat Boy 114 utilizes a 1868 cc (114 cu in) air-cooled v2, four-stroke layout. In factory specification, peak output is rated at 100 HP (73 kW) at 5,020 rpm while maximum torque reaches 160 Nm (118 lb-ft) at 3,500 rpm, transferring power to the rear wheel through a 6-speed gearbox and belt final drive. With a specific output of 53.5 HP per liter and a 1,520 rpm working window between peak torque (3,500 rpm) and peak power (5,020 rpm), the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.

On the scales, the Fat Boy 114 measures 306 kg (675 lbs) wet (curb), translating to a power-to-weight ratio of 0.33 HP/kg (3.06 kg per horsepower). Rider ergonomics and chassis geometry center around a 710 mm (28 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,690 mm (66.5 in) wheelbase engineered for planted straight-line stability. The 13.6-liter (3.6 US gal) fuel tank paired with a rated consumption of 5 L/100 km provides an estimated theoretical range of roughly 272 km (169 miles) between fill-ups.

Within MotoLibrary's Harley-Davidson archive, this model family spans 5 indexed model years from 2020 to 2024, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.