systems moved from magneto in the 1950s to battery-coil-contact breaker points, and these were increasingly superseded by Capacitor Discharge Ignition (CDI) from the 1980s. Small, single-cylinder motorcycles abandoned the flywheel magneto system with contact breakers to similar flywheel driven solid-state systems at about the same time. Turbo and Superchargers Superchargers, or blowers, were common in the GPs, until they were banned. The first supercharger on a production motorcycle was the 2015 Kawasaki Ninja H2 and H2R. The big four made a turbocharged bike, and Honda made two, mainly as an exercise in technical expertise and later discontinued them for more conventional methods. Bolt-on superchargers are available for street bikes and are essential for performance applications such as drag bikes and land speed record streamliners. Most sports bikes now use a ram-air induction system where as road speed increases, more air is forced through ducts in the fairing to pressurize the airbox. The first on a production motorcycle was the 1990 Kawasaki Ninja ZX-11. Not to be confused with the original Ram-Air system where an air scoop/cowl was fitted to the top of the cylinder heads of Suzuki two-stroke engines to aid cooling. See also List of motorcycles by type of engine Motorcycle motor powered car List of motorized trikes Aircraft engine References Engine technology