Classes for bikes
Classes this year are the same as previous years.
Pre 1975 British lightweights up to 250cc
Pre 1975 British juniors up to 350cc
Pre 1975 British seniors up to 600cc
Pre 1975 British heavyweights 601cc upwards
Pre 1975 Competition
Pre 1975 Overseas
Pre 1975 classic specials
Pre war and vintage
Post 1975 to 1980 modem classics | 
