2023 National Classes

Posted: 11.28.22

1AMA Pro450cc 4-Stk*18+2
2Pro-Am201-450cc 4-Stk13+2
3Pro Sport201cc-Open6
4Open B201cc-Open4
5Open C201cc-Open4
6450 A201-450cc 4-Stk5
7450 B201-450cc 4-Stk4
8450 C201-450cc 4-Stk4
9Production A201-450cc 4-Stk*5
10Production B201-450cc 4-Stk*4
11Production C201-450cc 4-Stk*4
12Production Stock B/C201-450cc 2-Stk/4-Stk*4
13College (16-24)Sportsman: 201cc-Open4
14Junior 25+201cc-Open5
15Veteran 30+A/BSportsman: 201cc-Open4
16Veteran 30+ C201cc-Open4
17Senior 40+ A/B201cc-Open4
18Senior 40+ C201cc-Open4
19Masters 50+201cc-Open4
20WMX201-450cc 4-Stk5
21Women (15+)201-450cc 4-Stk4
  15 yr old: 201-250cc 4-Stk 
22BattalionMilitary & 1st Responders4
  201cc-Open ; Non-points Class 
23Two-Stroke201cc-Open 2-Stk ; Non-points Class4

YOUTH CLASSES:  Age is based on the rider's age on January 1
24Youth All-Star (14-17)91-200cc 2-Stk, 91-250cc 4-Stk5
  201-400cc 4-Stk* 
25250 Mod (13-15)91-200cc 2-Stk; 91-250cc 4-Stk4
  201-400cc 4-Stk* 
  12 yr old: 71-112cc 2-Stk; 75-150cc 4-Stk 
26Schoolboy Sr. (13-17)91-200cc 2-Stk; 91-250cc 4-Stk; 4
  201-400cc 4-Stk* 
27Schoolboy Jr. (12-15)71-112cc 2-Stk; 75-150cc 4-Stk4
  91-200cc 2-Stk*; 91-300cc 4-Stk* 
  12 yr old: 71-112cc 2-Stk; 75-150cc 4-Stk 
28Super Mini (12-15)71-112cc 2-Stk; 75-150cc 4-Stk4
29Schoolgirl (13-17)91-200cc 2-Stk; 91-250cc 4-Stk4
  201-400cc 4-Stk* 
  12 yr old: 71-112cc 2-Stk; 75-150cc 4-Stk 
30Girls (8-13)70-90cc 2-Stk; 4
  125cc 4-Stk* 
3190 Open (8-13)71-90cc 2-Stk; 125cc 4-Stk4
3290 Automatic (8-13)71-90cc 2-Stk; 125cc 4-Stk*4
  Automatic/CVT/Single Speed 
3390 Shifter (8-13)71-90cc 2-Stk; 125cc 4-Stk; Shifter4
3470 Open (6-11)51-70cc;4
  125cc 4-Stk* 
3570 Automatic (6-11)51-70cc*; Automatic/CVT/Single Speed4
3670 Shifter (6-11)51-70cc; Shifter4
  125cc 4-Stk* 
3750 Open (4-8)0-50cc4
3850 CVT (4-8)0-50cc*; Belt-Drive4
3950 Automatic (4-6)0-50cc; Automatic/CVT/Single Speed4
  0-50cc; Automatic/CVT/Single Speed 

*Production Rule Applies
**Laps are 'weather permitting'. Pro/Pro-Am reference is to time, then laps.