AMA D-2 2020 Race Classes
| Class | Requirement: |
50cc (4-6) | 0-51cc 2 or 4-Stroke 10″ Max Wheel Size |
50cc Oil Injected/Shifter (4-8) * | 0-51cc 2-Stroke Oil Injection 0-51cc 4-Stroke 10″ Max Wheel Size |
50cc (7-8) | 0-51cc 2 or 4-Strokes 12″ Max Wheel Size |
Mini E (4-8) * | Electric Bikes Only |
| 50cc (4-8) Open | 0-51cc 2 or 4-Strokes 12″ Max Wheel Size |
| 65cc (7-9) | 59-65cc 2 Strokes 12″ Rear, 14″ Front Wheels |
| 65cc (10-11) | 59-65cc 2-Strokes 12″ Rear, 14″ Front Wheels |
| Jr Mini (9-13) 65/85 * | 59-85cc 2-Strokes 16″ Rear, 17″ Front Wheels |
| 85cc (9-11) | 79-85cc 2-Strokes 16″ Rear, 17″ Front Wheels |
| 85/150cc (12-15) | 79-85cc 2-Strokes 75-150cc 4-Strokes 16″ Rear, 17″ Front Wheels |
| Supermini (12-16) | 79-85cc 2-Strokes 75-150cc 4-Strokes 16″ Rear, 19″ Front Wheels |
| Schoolboy 1 (12-17) | 86-125cc 2-Stroke 75-150cc 4-Stroke Min 16″ Rear 19″ Front Wheel |
| Schoolboy 2 (12-17) | 122-150cc 2-Stroke 126-250cc 4-Stroke No Mini or Supermini |
Beginner Youth 65/85cc (9-15) * | 59-85cc 2 Strokes 16″ Rear, 17″ Front Wheels First Time Racers Only |
| Girls (9-14) | 59-85cc 2-Strokes Max 16″ Rear, 19″ Front Wheel |
| Women 14+ | 99-250cc |
125/Open 2-Stroke 14+ * | 122-Open 2 Stroke |
Collegeboy (14-24) * | 122cc-Open |
250 A, B, C | 122cc-Open, Must be 14 to Ride 250cc 4-Stroke |
450 A, B, C | 122cc-Open, Must be 16 to Ride 450cc 4-Stroke |
Vet 25+ A, B, C | 122cc-Open, Must be 25 Years Old Day of Event |
Vet 30+ A, B, C | 122cc-Open, Must be 30 Years Old Day of Event |
Senior 40+ A, B, C | 122cc-Open, Must be 40 Years Old Day of Event |
Senior 45+ | 122cc-Open, Must be 40 Years Old Day of Event All Class Levels |
Masters 50+ | 122cc-Open, Must be 50 Years Old Day of Event All Class Levels |
55+ Sportsman B/C Level Only | 122cc-Open, Must be 55 Years olf Day of Event Never Obtained A Level |
| Master 60+ | 122cc-Open, Must be 60 Years old Day of Event All Class Levels |
*Special Classes and | Rules May Apply See D2MX Supplemental Rules |
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