A streetfighter is a superbike that is customized by removing the fairing, and making other changes that result in an overall more aggressive look.[1][2] Beyond simply removing fairings, specific changes that exemplify the streetfighter look are a pair of large, round headlights, tall, upright handlebars such as those on a motocross bike, and short, loud, lightweight mufflers. Completely custom-built one-off frames, originally intended to overcome the weakness of the tubular steel frames of the early 4-cylinder super-bikes of the 70's and 80's, also characterize the streetfighter trend. Many of these frames turned out to be "beautifully crafted pieces of metallurgical art," perhaps only unintentionally.[3]
It is also possible that the streetfighter came about simply because young stunters of the 80s in the UK couldn't afford to replace their damaged fairings after repeated crashes, so they took them off. Later, more appropriate headlights were added, then high handlebars to aid in wheelies and other stunts.[4][5]
Made popular by European riders, this type of custom motorcycle is gaining popularity all over the world, and motorcycle manufacturers began responding in the late 1990s by producing factory streetfighters, beginning with the 1998 Triumph Speed Triple[6] and the 1999 Honda X11[7], to the up through the 2009 Ducati Streetfighter.