The Kawasaki Ninja H2 is a supercharged four-stroke supersport-class motorcycle in the Ninja sports bike series manufactured by Kawasaki, featuring a variable-speed centrifugal supercharger.
Street-legal Ninja H2
Track-only Ninja H2R
Ninja H2 SX
Engine shown at 2013 Tokyo Motor Show; supercharger has cover embossed "Kawasaki" to right of cylinders
A quickshifter or quick shifter is a device that eliminates the need to use the clutch or throttle when shifting gears on a manual transmission. This can increase the safety and comfort of the vehicle and allow for faster gear shifting and is thus a popular performance enhancement for motorcycles.
Quickshifter on a BMW S1000RR motorcycle.