2025 CLASSES


51cc shaft drive limited 4-8
51cc 4-6 special limited
51cc 4-6 limited
51cc 7-8 limited
51cc open
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  BIG WHEEL ALLOWED 9-13
85cc C BEGINNER **BIG WHEEL ALLOWED 10-14
85cc mini sr 1 12-14 BIG WHEEL ALLOWED
85cc mini sr 2 13-15 BIG WHEEL ALLOWED
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+ 122CC & UP
Schoolboy 1 (12-17) b/c
Schoolboy 2 (12-17) b/c
College (18-24)
WARRIOR CLASS 



2025 MX Class Descriptions -

51cc shaft drive limited 4-8
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 open  BIG WHEEL ALLOWED 9-13
85cc C BEGINNER **BIG WHEEL ALLOWED 10-14
*** Qualifications for 85 C class never been to Loretta's or scored top 10 at any Dirty 100 event​
85cc mini sr 1 12-14 BIG WHEEL ALLOWED
85cc mini sr 2 13-15 BIG WHEEL ALLOWED
​
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
WOMEN 12+ 122CC AND UP

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
Class eligibility Is for those veterans who have served or those currently serving the armed forces of the United States




NO REFUNDS.
NO TRANSFERS AFTER October 1, 2025


AMA Sanctioned Event
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All Information Subject to Change