The 2015 Harley-Davidson Iron 883 Sportster has a 53.9-cubic-inch (883 cc) air-cooled engine with a compression ratio of 09:01, electronic sequential port fuel injection, and a primary drive chain with a 34/57 ratio. The motorcycle is 88.8 inches long, with a wheelbase of 59.5 inches. It's ground clearance is 4.7 inches, with a trail of 4.6 inches.
The engine's bore is 3 inches and the stroke is 3.811 inches. The engine is air-cooled. Fuel capacity is 3.3 gallons of recommended 91-octane gasoline or higher, and the bike gets a combined city and highway fuel economy of 55 miles per gallon. Torque tests at 53.8 foot-pounds at 3,750 revolutions per minute. The gear ratios are 10.41:1 for first, 7.436:1 for second, 5.531:1 for third, 4.584:1 for fourth and 3.931:1 for fifth.
The Harley-Davidson Iron 883 Sportster has a chrome, staggered shorty exhaust with dual mufflers. The wheels are black with 13 spokes made of cast aluminum. The front tire is 100/90B19 57H, and the rear tire is 150/80B16 77H. Laden, the seat is 25.7 inches high, and unladen it is 28.9 inches. The rake angle is 30.5 degrees. The lean angle on the left is 30 degrees, and on the right it's 29 degrees.