Class
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
Clubman
Any cc – 2 or 4 stroke
E
Rigids
Any cc
F
Special Machines
Other machines that do not comply with A to E
G
Gentlemen
In at Begins, exit at End Card, anywhere in between