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This is a list of classes that are available:
| Class |
Description |
| Micro Mini |
0-50cc Automatic transmission |
| 65cc |
6-11 0-65cc 2-stroke or 0-90cc 4-stroke maximum wheel size 14 inches |
| Mini Jr. |
7-11 52-85cc 2-stroke or 52-125cc 4-stroke maximum of 16 in. rear wheel size and 19 in. front |
| Mini Sr. |
12-15 66-85cc 2-stroke or 75-125 4-stroke maximum wheel size 16 inch rear and 19 inch front |
| Super Mini |
10-15 99-112cc 2-stroke 99-150cc 4-stroke with 16”inch rear and 19” front wheels |
| 125cc |
113cc-125cc |
| 200cc |
126-200cc 2-stroke/126-250cc 4-stroke |
| 250cc |
201-250cc |
| 450cc |
251-450cc |
| 600cc |
451-600cc |
| 750cc |
601-750cc |
| Open |
751cc and up |
| Masters |
40 years and over/any engine size |
| Vets |
50 years and over/any engine size |
| 4-Stroke |
86-600cc 4-stroke motors only - D16 points only |
| 2-Stroke |
86-600cc 2-stroke motors only - no district points |
| Women |
Female riders at least 12 years of age on any motorcycle or minicycle with an engine displacing at least 86cc |
| 400cc Stock |
0-400cc stock wheelbase - D16 points only |
| Open Stock |
401cc an up stock wheelbase - D16 points only |
| ATV 0-450 |
Any 4 wheel ATV - 0-450cc |
| ATV 451-open |
Any 4 wheel ATV - 451cc to open |