Classes - British Bikes Only

A Experts, 2 or 4 stroke, up to 350cc

B Experts, Over 350cc/Twins/Pre Unit

C Intermediates - Any cc, 2 or 4 stroke

D Clubmeb - Any cc, 2 or 4 stroke

E Rigids

F Special Machines - other machines that do not conform to A or E

G Gentlemen - In at Begins, Exit at End Card, anywhere in between