CLASSES

Download 2018  Class Clarification Chart

 

Class # Class Name Class Description (2S=2-Stroke, 4S=4-Stroke)
1. 51cc (4-6) Special Limited

Single or Multi Speed 0-51cc 2S or 4S 4-6yrs Single or multi-speed automatic. Maximum (adjusted length) wheelbase 38 inches. Maximum wheel size 10 inches. Maximum seat height 22 inches. No larger than 13mm round intake.

The 51cc (4-6) Special Limited class is limited to the following models: Honda XR50, Honda CRF50, KTM Mini Adventure, KTM 50 SX Mini, Suzuki JR50, Kawasaki KDX50, Yamaha TTR50, Yamaha PW 50, and Cobra P3, Cobra PW3, and Cobra GI.

2. 51cc (4-6) Limited

0-51cc 2S 4-6yrs Single-speed automatic. Maximum (adjusted length) wheelbase 36 inches. Maximum wheel size 10 inches. Maximum seat height 24 inches. No larger than 14mm round intake.

3. 51cc (7-8) Limited

0-51cc 2S 7-8yrs Single-speed automatic. Maximum (adjusted length) wheelbase 41 inches. Maximum wheel size 12 inches. Retrofitted 12-inch wheels are permitted on all class 2 motorcycles. OEM parts must be used. No larger than 19mm round intake.

4. 51cc (5-6)

Modified 0-61cc 2S 5-8yrs. Single-speed automatic. Maximum wheel size 10 inches.

5. 51cc (5-8)

Modified 0-61cc 2S 5-8yrs. Single-speed automatic. Maximum wheel size 12 inches.

6. 65cc (7-9) Limited 59-65cc 2S 7-9yrs 14"FW/12"RW/45"WB
7. 65cc (7-9) Modified 59-65cc 2S 7-9yrs 14"FW/12"RW/45"WB
8. 65cc (10-11) Limited 59-65cc 2S 10-11yrs 14"FW/12"RW/45"WB
9. 65cc (10-11) Modified 59-65cc 2S 10-11yrs 14"FW/12"RW/45"WB
10. 65cc (7-11) Modified 59-65cc 2S 7-11yrs 14"FW/12"RW/45"WB
11. 85cc (9-11) Limited 79-85cc 2S/150cc 4S 9-11yrs 17"FW/12"-16"RW/51"WB
12. 85cc (9-12) Modified 79-85cc 2S/150cc 4S 9-12yrs 17"FW/12"-16"RW/51"WB
13. Mini Sr 1 (12-13) Modified 79-85cc 2S/150cc 4S 12-13yrs 17"FW/12"-16"RW/51"WB
14. Mini Sr 2 (12-14) Modified 79-85cc 2S/150cc 4S 12-14yrs 17"FW/12"-16"RW/51"WB
15. Mini (9-15) Modified 79-85cc 2S/150cc 4S 9-15yrs 17"FW/12"-16"RW/51"WB
16. Super Mini 1 (12-15) Modified 79-112cc 2S/150cc 4S 12-15yrs 19"FW/16"RW/52"WB
41. Super Mini 2 (13-16) Modified 79-112cc 2S/150cc 4S 13-16yrs 19"FW/16"RW/52"WB
17. Schoolboy 1 (12-16) B/C Modified 86-125cc 2S/75-150cc 4S 12-16yrs Min 19"FW/16"RW
18. **Schoolboy 2 (12-17) B/C

Modified 100-150cc 2S/126-250cc 4S 12-17yrs Minimum wheelbase 53 inches. No minicycle or Supermini. (Min age for 250cc 14yrs)

43. 125cc C Modified 125cc No Mini or Supermini
44. **125cc (12-17) B/C

Modified 125cc 12-17yrs No Mini or Supermini

19. College (16-24) B/C Modified 122cc - Open 16-24yrs
45. Girls  (11-16) Modified 79-112cc 2S/75-150cc 4S Max wheels 19"FW/16"RW (Min age for Supermini 12yr)
22. Women (12+

Modified 99-250cc 2S/250cc 4S 12yrs & Up 19"FW/16"RW Min. (WMX top 5 not eligible) (Min age for 250cc 14yr)

23. Two-Stroke (12+) B/C Modified 122-250cc 12yrs & Up (Min age for 250cc 14yrs)
24. 250 C Limited 122-250cc C/Novice/Junior (Min age for 250cc 14yrs)
42. 250 C (14-16) Limited 122-250cc C/Novice/Junior (14-16yr) (Min age for 250cc 14yrs)
25. 250 C Modified 122-250cc C/Novice/Junior (Min age for 250cc 14yrs)
26. 250 B Limited 122-250cc B/Intermediate (Min age for 250cc 14yrs)
27. 250 B Modified 122-250cc B/Intermediate (Min age for 250cc 14yrs)
28. 250 A/Pro-AM Modified 122-250cc A/Pro (Pro-AM Points)
29. Open C Limited 122cc - Open C/Novice/Junior (Min age for 250cc 14yrs & Min age for 450cc 16yrs)
30. Open C Modified 122cc - Open C/Novice/Junior (Min age for 250cc 14yrs & Min age for 450cc 16yrs) (Alta Approved)
31. Open B Limited 122cc - Open B/Intermediate (Min age for 250cc 14yrs & Min age for 450cc 16yrs)
32. Open B Modified 122cc - Open B/Intermediate (Min age for 250cc 14yrs & Min age for 450cc 16yrs) (Alta Approved)
34. Open A ProSport/Pro-AM Modified 122cc - Open A/Pro (Pro-AM Points) (Alta Approved)
35. Junior (25+) Modified 122cc - Open 25yrs & Up (Open Skill Level) Sunday Only (2-moto format) (Alta Approved)
36.5 Vet (30+) Modified 122cc - Open 30yrs & Up (Open Skill Level) Sunday Only (2-moto format) (Alta Approved)
38.5 Senior (40+) Modified 122cc - Open 40yrs & Up (Open Skill Level )Sunday Only (2-moto format) (Alta Approved)
40. Masters (50+) Modified 122cc - Open 50yrs & Up (Open Skill Level) Sunday Only (2-moto format) (Alta Approved)

**Age Effective for all youth classes is January 1, 2018

Age Effective for all amateur classes is November 29, 2018

Age Effective for 25+, 30+ 40+ and 50+ classes is December 2,2018

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