The Lansdowne Classic Series hosts the official British Championship for pre-1964 Grand Prix 500cc machines, their other classes serve 350 and 500 machines of the period with various modification regulations. The Lansdowne enjoys a unique link to the Goodwood Revival and the Barry Sheene Memorial Trophy race. GP Originals began in 2017 and was inspired by the Hailwood Trophy race at the Goodwood Members Meeting. Typical machines are Yamaha TZ250 and TZ350 but other marques including the Harley Davidson RR250 and Rotax feature. This class has now moved across to NG Road Racing who are established as the central home of two-stroke Grand Prix motorcycle racing in the UK, the Club now hosts all three ACU National Championship titles. The International Historic Racing Organisation has been running for over 20 years and organises high level competition for classic racing motorcycles around Europe In the United States Classic Racing is organised by the
American Historic Racing Motorcycle Association (AHRMA) who organise Classic Racing events for all types of Classic bikes.
Classic Racing Australia is a non-profit organisation, formed in August 2000, which was designed to keep Classic Motorcycle Racing alive and well in Australia. ==External links==