2020 National Classes

Revised 2.14.20
Red Denotes Changes for 2020

 CLASSRESTRICTIONDISPLACEMENTLAPS**
PRO: Riders must be 17 or older on date of event to compete 
Pro-Am & A: Riders must be 16 or older on date of event to compete
 
1AMA ProProduction350-450cc 4-Stk18+2
2Pro ModAMA Pro/Pro-Am 91-265cc 2-Stk; 201-450cc 4-Stk7
3Pro StockProduction Stock201-450cc 2-Stk/4-Stk6
  AMA Pro/Pro-Am/A  

AMATEUR: Riders must be 16 or older on date of event to compete 
4Pro-AmPro-Am/A201-450cc 4-Stk7
5WMX 201-450cc 4-Stk5
6Open B 201cc-Open4
7Open C 201cc-Open4
8Production AProduction201-450cc 4-Stk5
9Production BProduction201-450cc 4-Stk4
10Production CProduction201-450cc 4-Stk4
11Production Stock  Production Stock201-450cc 2-Stk/4-Stk4
12Production Stock CProduction Stock201-450cc 2-Stk/4-Stk4
13450 A 201-450cc 4-Stk5
14450 B 201-450cc 4-Stk4
15450 C 201-450cc 4-Stk4
16College (16-24)Sportsman201cc-Open4
17Junior 25+ 201cc-Open5
18Veteran 30+ Sportsman201cc-Open4
19Veteran 30+B 201cc-Open4
20Veteran 30+ C 201cc-Open4
21Senior 40+ 201cc-Open4
22Senior 40+ B 201cc-Open4
23Senior 40+ C0201cc-Open4
24Masters 50+ 201cc-Open4
25Women (25+) 201-450cc 4-Stk4

YOUTH CLASSES:  Age is based on the rider's age on January 1
26Youth All-Star (14-17) 91-200cc 2-Stk, 91-250cc 4-Stk4
  Production*201-400cc 4-Stk* 
27250 Mod (13-15) 91-200cc 2-Stk; 91-250cc 4-Stk4
  Production*201-400cc 4-Stk* 
   12 yr old: 71-105cc 2-Stk; 75-150cc 4-Stk 
28Schoolboy Sr. (14-17) 91-200cc 2-Stk; 91-250cc 4-Stk; 4
  Production*201-400cc 4-Stk* 
29Schoolboy Jr. (12-15) 71-105cc 2-Stk; 75-150cc 4-Stk4
  Production*91-200cc 2-Stk*; 91-300cc 4-Stk* 
   12 yr old: 71-105cc 2-Stk; 75-150cc 4-Stk 
30Super Mini (12-15) 71-105cc 2-Stk; 75-150cc 4-Stk4
31Schoolgirl (13-17)91-200cc 2-Stk; 91-250cc 4-Stk4
  Production*300-400cc 4-Stk* 
   12 yr old: 71-105cc 2-Stk; 75-150cc 4-Stk 
32Girls (8-13)70-90cc 2-Stk; 4
  Production*125cc 4-Stk* 
33125 (8-15)Production90-125cc 4-Stk4
3490 Open Sr. (12-15) 71-90cc 2-Stk; 125cc 4-Stk4
3590 Open Jr. (8-11) 71-90cc 2-Stk; 125cc 4-Stk4
3690 Automatic (8-13)Production71-90cc 2-Stk; 125cc 4-Stk; Automatic/CVT/Single Speed4
3790 Shifter Sr. (12-15) 71-90cc 2-Stk; 125cc 4-Stk; Shifter4
3890 Shifter Jr. (8-11) 71-90cc 2-Stk; 125cc 4-Stk; Shifter4
3970 Open (6-11) 51-70cc4
  Production*125cc 4-Stk* 
4070 Automatic (6-11)Production51-70cc; Automatic/CVT/Single Speed4
4170 Shifter (6-11) 51-70cc; Shifter4
  Production*125cc 4-Stk* 
4250 Open (4-8) 0-50cc4
4350 CVT (4-8)Production0-50cc; Belt-Drive4
4450 Automatic (4-6) 0-50cc; Automatic/CVT/Single Speed4

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

Red Denotes Changes for 2020