50cc OIL INJ-UNDER 5 HP	125cc NOVICE
50cc 4-6	125cc INTERMEDIATE
50cc 7-8	125cc EXPERT
50cc OPEN 4-8	OPEN OUTLAW
65cc 6-8	FOUR-STROKE
65cc 9-11	250cc BEGINNER
65cc OPEN 6-11	250cc NOVICE
WOMEN	250cc INTERMEDIATE
80cc BEGINNER 7-16	250cc EXPERT
80cc JR 7-11	VINTAGE
80cc SR 12-16	PLUS 25 NON-PRO
80cc OPEN 7-16	PLUS 30 NON-PRO
SCHOOLBOY	PLUS 40 NON-PRO
125cc BEGINNER	PLUS 50 NON-PRO