Iron 883

2021 Harley-Davidson Iron 883 Technical Analysis & Specification Breakdown

Engineered by Harley-Davidson for the custom - cruiser motorcycle segment, the 2021 Harley-Davidson Iron 883 relies on a 883 cc (53.9 cu in) air-cooled v2, four-stroke powerplant. In factory specification, peak output is rated at 51 HP (37.2 kW) at 6,000 rpm while maximum torque reaches 73 Nm (53.8 lb-ft) at 3,750 rpm, transferring power to the rear wheel through a 6-speed gearbox and belt final drive. With a specific output of 57.8 HP per liter and a 2,250 rpm working window between peak torque (3,750 rpm) and peak power (6,000 rpm), the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.

On the scales, the Iron 883 measures 256 kg (564 lbs) wet (curb), translating to a power-to-weight ratio of 0.2 HP/kg (5.02 kg per horsepower). Rider ergonomics and chassis geometry center around a 653 mm (25.7 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,515 mm (59.6 in) wheelbase engineered for balanced agility and highway composure. The 12.5-liter (3.3 US gal) fuel tank paired with a rated consumption of 4.61 L/100 km provides an estimated theoretical range of roughly 271 km (168 miles) between fill-ups.

Within MotoLibrary's Harley-Davidson archive, this model family spans 3 indexed model years from 2020 to 2022, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.