Revised 4.6.21
Red Denotes Changes for 2021

	CLASS	RESTRICTION	DISPLACEMENT	LAPS**
1	AMA Pro	Production	350-450cc 4-Stk	18+2
2	Pro-Am	Pro/Pro-Am/A	91-265cc 2-Stk; 201-450cc 4-Stk	13+2
3	Pro Stock	Production Stock	201-450cc 2-Stk/4-Stk	6
		Pro/Pro-Am/A
4	Pro Sport	Pro-Am/A	201cc-Open	6
5	Open B		201cc-Open	4
6	Open C		201cc-Open	4
7	450 A		201-450cc 4-Stk	6
8	450 B		201-450cc 4-Stk	4
9	450 C		201-450cc 4-Stk	4
10	Production A	Production	201-450cc 4-Stk	4
11	Production B	Production	201-450cc 4-Stk	4
12	Production C	Production	201-450cc 4-Stk	4
13	Production Stock A/B	Production Stock	201-450cc 2-Stk/4-Stk	4
14	Production Stock C	Production Stock	201-450cc 2-Stk/4-Stk	4
15	College (16-24)	Sportsman	201cc-Open	4
16	Junior 25+		201cc-Open	5
17	Veteran 30+ A/B	Sportsman	201cc-Open	4
18	Veteran 30+ C		201cc-Open	4
19	Senior 40+ A/B		201cc-Open	4
20	Senior 40+ C		201cc-Open	4
21	Masters 50+		201cc-Open	4
22	WMX		201-450cc 4-Stk	5
23	Women (15+)		201-450cc 4-Stk	4
			15 yr old: 201-250cc 4-Stk

	YOUTH
	CLASS	RESTRICTION	DISPLACEMENT	LAPS**
24	Youth All-Star (14-17)		91-200cc 2-Stk, 91-250cc 4-Stk	4
		Production*	201-400cc 4-Stk*
25	250 Mod (13-15)		91-200cc 2-Stk; 91-250cc 4-Stk	4
		Production*	201-400cc 4-Stk*
			12 yr old: 71-105cc 2-Stk; 75-150cc 4-Stk
26	Schoolboy Sr. (13-17)		91-200cc 2-Stk; 91-250cc 4-Stk;	4
		Production*	201-400cc 4-Stk*
27	Schoolboy Jr. (12-15)		71-105cc 2-Stk; 75-150cc 4-Stk	4
		Production*	91-200cc 2-Stk*; 91-300cc 4-Stk*
			12 yr old: 71-105cc 2-Stk; 75-150cc 4-Stk
28	Super Mini (12-15)		71-105cc 2-Stk; 75-150cc 4-Stk	4
29	125 (8-15)	Production	90-125cc 4-Stk	4
30	Schoolgirl (13-17)		91-200cc 2-Stk; 91-250cc 4-Stk	4
		Production*	201-400cc 4-Stk*
			12 yr old: 71-105cc 2-Stk; 75-150cc 4-Stk
31	Girls (8-13)		70-90cc 2-Stk;	4
		Production*	125cc 4-Stk*
32	90 Open Sr. (12-15)		71-90cc 2-Stk; 125cc 4-Stk	4
33	90 Open Jr. (8-11)		71-90cc 2-Stk; 125cc 4-Stk	4
34	90 Automatic (8-13)	Production	71-90cc 2-Stk; 125cc 4-Stk; Automatic/CVT/Single Speed	4
35	90 Shifter Sr. (12-15)		71-90cc 2-Stk; 125cc 4-Stk; Shifter	4
36	90 Shifter Jr. (8-11)		71-90cc 2-Stk; 125cc 4-Stk; Shifter	4
37	70 Open (6-11)		51-70cc	4
		Production*	125cc 4-Stk*
38	70 Automatic (6-11)	Production	51-70cc; Automatic/CVT/Single Speed	4
39	70 Shifter (6-11)		51-70cc; Shifter	4
		Production*	125cc 4-Stk*
40	50 Open (4-8)		0-50cc	4
41	50 CVT (4-8)	Production	0-50cc; Belt-Drive	4
42	50 Automatic (4-6)		0-50cc; Automatic/CVT/Single Speed	4

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

Red Denotes Changes for 2021