Classes

A

pre-1970 unit construction 4-stroke

B

pre-1970 British 2-stroke

C

pre-unit 4-stroke

D

rigid framed motorcycles

E

schoolboy / ladies riding mono or twinshock

F

over 50 riding British bike

G

twin shock

H

over 50 riding mono or twinshock

T

trail bikes

X

monoshock no conforming to class E/H