The Screamin’ Eagle Ultra Classic is powered by largest-displacement production engine ever offered by Harley-Davidson, the 110-cid (1800cc) Twin Cam 110, a high-performance V-Twin engine that delivers 115 ft. lbs. of torque at 3000 rpm. Electronic Sequential Port Fuel Injection (ESPFI) is standard on the Twin Cam 110, as is a custom oil cooler with chrome cover.. The engine is mated to a new 6-speed Cruise Drive transmission for lower cruising rpm in top gear. The powertrain is finished in black powdercoat with chrome covers.