The modification of a motorcycle to improve its competitiveness has always been part of the racing game.
Triton motorcycles were not factory models but were hybrid bikes built in the 1960s and 1970s.
The Black Lightning was a Vincent-HRD motorcycle first built in September 1948 at the Vincent works in Great North Road, Stevenage, Hertfordshire, UK, and produced from 1948 to 1952. At the time the Black Lightning was the fastest production motorcycle in the world.
The Triumph Bonneville is a standard motorcycle featuring a parallel-twin four-stroke engine and manufactured in three generations over three separate production runs.
The Curtiss V-8 motorcycle was a 269 cu in (4,410 cc) V8 engine-powered motorcycle designed and built by aviation and motorcycling pioneer Glenn Curtiss that set an unofficial land speed record of 136.36 miles per hour (219.45 km/h) on January 24, 1907.
The Britten V1000 is a handbuilt race motorcycle designed and built by John Britten and a group of friends in Christchurch, New Zealand during the early 1990s.