Official D18 Points Paying MX Bike Classes                                                            

Minicycle

50cc JR Stock (4-6)

50cc SR Stock (7-8)                                                                                                                                                                                       

65cc JR (7-9)

65cc SR (10-11)

65cc Open (7-11)                                                                                                                                                                     

85cc JR (9-11)

85cc SR (12-15)

Girls (79cc-105cc 2 stroke)                                                                      
Super Junior (9-11) (79cc-85cc – Big Wheel allowed)

Super Mini (12-16) (79cc-112cc 2 stroke & 150 4 stroke)

Minicycle / Motorcycle

Women (99cc-250cc Supermini Allowed)

Schoolboy 12-16 (86cc-125cc 2 stroke & 150 4 stroke Big Wheel Only)

Motorcycle

Bikes must have a minimum wheel base of 53”except in Women’s class

Schoolboy 14-16 (126cc-250cc)

14-24 (122-Open)

Four Stroke (250-Open)

+25A/+30A/+35A/+40A/+45A Vet (122-Open)

250 (122-250) A/B/C

Open (122-Open) A/B/C

Official D18 Points Paying MX ATV Classes

ATV A/B/C

Please note: +50 and youth quad classes will not pay points in 2008 but are still approved AMA classes (as is the 50 Shaft class).

Also note: Beginner classes are not recognized by AMA and are not approved D18 classes.