The Harley-Davidson 48 is a classic style cruiser with a traditional V-twin engine and a low-slung profile. It has a 48-cubic inch, air-cooled engine with an electronic fuel injection system that produces up to 60 horsepower and 65 pound-feet of torque. The Iron 1200 is an updated version of the 48 that features a higher-performance engine. It has a larger, 1200 cubic inch, air-cooled engine with an electronic fuel injection system that produces up to 73 horsepower and 78 pound-feet of torque.