the fastest motorcycle in the world

A friend of mine just bought a BMW 1200 and suggested that it is one of the fastest motorcycles in commercial production. I looked up the fast motorcycles in the world. According to http://hypertextbook.com/facts/2001/JerryChan.shtml which lists the major speed records of motorcycles, the Guiness book of World Records lists the 322.16 mph set by Dave Campos in 1990 as the world record, powered by two 1491 cc Ruxton Harley-Davidson engines.