2023 CLASSES
51cc shaft drive limited (4-6)
51cc 4-6 special limited
51cc 4-6 limited
51cc 7-8 limited
51cc open LTD
E BIKE MINI 4-8 LTD
65cc 7-9
65cc 7-9 limited
65cc 10-11
65cc 10-11 limited
65cc open
85cc 9-11 limited
85cc 9-12 mod
85cc open
85cc C 9-15 **
85cc mini sr 1 12-14
85cc mini sr 2 13-15
Supermini 1 12-15
Supermini 2 13-16
125 C
125cc 12-17 b/c
250 PRO SPORT
250 B
250 B limited
250 C
250 C limited
250 C Jr 12-17 limited
Open pro sport
450 B
450 B limited
450 C
Vet 25+
Vet 40+
Vet Open
Girls 9-13 (65/85)
Girls 11-16
Womens 12+ (supermini eligible)
Schoolboy 1 (12-17) b/c
Schoolboy 2 (12-17) b/c
College (18-24)
**Warrior Class
**85cc C 9-15
* riders who have received a ticket to an Amateur National or
received a podium finish at a Dirty 100 event are not eligible for this class
**Warrior Class
Class eligibility is for those veterans who have served or those currently serving the armed forces of the United States
MUST BE A VET MX MEMBER
Class Descriptions -
51cc shaft drive limited
0-51cc
51cc 4-6 special limited
0-51cc
no pre mix
no KTM JR
Bike must be mini adventures or p3
51cc 4-6 limited
0-51cc
no 12” front wheel
Bikes KTM JR or Cobra JR
51cc 7-8 limited
0-51cc
51cc open LTD - E BIKES ALLOWED TO RACE 50 Open Class
E BIKE MINI 4-8 LTD
1 kWh battery
65cc 7-9
65cc 7-9 limited
65cc 10-11
65cc 10-11 limited
65cc open
85cc 9-11 limited
85cc 9-12 mod
85cc open
85cc C 9-15 **
85cc mini sr 1 12-14
85cc mini sr 2 13-15
Supermini 1 12-15
Supermini 2 13-16
125 C
125cc 12-17 b/c
250 PRO SPORT
250 B
250 B limited
250 C
250 C limited
250 C Jr 12-17 limited
Open pro sport
450 B
450 B limited
450 C
Vet 25+
Vet 40+
Vet Open
Girls 9-13 (65/85)
Girls 11-16
Womens 12+ (supermini eligible)
Schoolboy 1 (12-17) b/c
-2 stroke only, no 4 strokes
-125 or Supermini
Schoolboy 2 (12-17) b/c
-4 stroke or 2 stroke
College (18-24)
Warrior Class (Vet MX)
AMA Sanctioned Event
All Information Subject to Change