2021 Harley-Davidson Sportster Iron 883, Engine and transmission Displacement 883.0 ccm (53.88 cubic inches) Engine type V2, four-stroke Engine details Evolution® engine Power 51.0 HP (37.2 kW)) @ 6000 RPM Torque 73.0 Nm (7.4 kgf-m or 53.8 ft.lbs) @ 3750 RPM Compression 9.0:1 Bore x stroke 76.2 x 96.8 mm (3.0 x 3.8 inches) Fuel system Injection. Electronic Sequential Port Fuel Injection (ESPFI) Lubrication system Dry sump Cooling system Air Gearbox 6-speed Transmission type Belt (final drive) Clutch Multi-plate with diaphragm spring in oil bath Fuel consumption 4.61 litres/100 km (21.7 km/l or 51.02 mpg) Greenhouse gases 107.0 CO2 g/km. (CO2 - Carbon dioxide emission) Exhaust system Black exhaust headers and black mufflers Chassis, suspension, brakes and wheels Rake (fork angle) 30.0° Trail 117 mm (4.6 inches) Front suspension Telescopic fork Rear suspension Twin shocks. Front tire 100/90-B19 Rear tire 150/80-B16 Front brakes Single disc. Optional ABS, dual piston Diameter 300 mm (11.8 inches) Rear brakes Single disc. Optional ABS, dual piston Diameter 300 mm (11.8 inches) Wheels Black 9 Spoke with Machined Highlights Physical measures and capacities Dry weight 247.0 kg (544.5 pounds) Weight incl. oil, gas, etc 256.0 kg (564.4 pounds) Power/weight ratio 0.2065 HP/kg Seat height 653 mm (25.7 inches) If adjustable, lowest setting. Overall length 2185 mm (86.0 inches) Ground clearance 140 mm (5.5 inches) Wheelbase 1515 mm (59.6 inches) Fuel capacity 12.50 litres (3.30 US gallons) Oil capacity 2.80 litres (2.96 US quarts)