Race Classes Period 1 – Veteran: Up to 1919 Period 2 – Vintage: 1920-1945 Period 3 – Classic: 1946-1962 Period 4 – Post Classic: 1963-1972 Period 5 – Forgotten Era: 1973-1982 Period 6 – New Era: 1983-1990 Pre-Modern: 1991-1997 Commuterlites Sidecars Defunct 2 stroke GP (D2sGP) Share Facebook Twitter Pinterest Linkedin