CALVMX    MX Class Descriptions                    

Classic 1                                   Any bike built before 1968
Classic 2                                   Any bike built before 1968

Vintage Sportsman 100        Any 100 cc bike built before 1975
Vintage Sportsman 125        Any 125 cc bike built before 1975
Vintage Sportsman 250        Any 250 cc bike built before 1975
Vintage Sportsman 500        Any 500 cc bike built before 1975

GP1                                           Any bike built before 1978
GP2                                           Any bike with drum brakes, air cooled
GP3                                           Any bike with drum brakes
GP4                                           Any bike built before 1990

>>All GP classes are broken further down to 125cc, 250cc and 500cc    

+30                                            Vintage sportsman or GP bike
+40                                            Vintage sportsman or GP bike
+50                                            Vintage sportsman or GP bike
+60                                            Vintage sportsman or GP bike

>>All  age classes are broken down by either GP class or Vintage class



Ironman                                 Any man or womean on any bike with drum
brakes. One 30 minute moto

Women                                  Any age any bike

Jr. Vintage                            12-15 years old pre-1975 bike

Jr.                                            12-15 years old any bike