2008 Classes

The following chart shows the classes run in previous years and the changes to each class due to the new AMA rules.

Click Here for Official AMA Rule changes for 2008.

Old classes (Prior to 2008)
Changes to classes for 2008
Quad A Production (16 yrs+, A Class rider. 91 to 265cc 2 Stroke, 91 to 450cc 4 Stroke)
No Change
Quad B Production (16 yrs+, B/C Class rider. 91 to 265cc 2 Stroke, 91 to 450cc 4 Stroke)
No Change
Quad A Open (16 yrs+, A Class rider. 91cc - Open)
No Change
Quad B Open (16 yrs+, B Class rider. 91cc - Open)
No Change
Quad C Open (16 yrs+, C Class rider. 91cc - Open)
No Change
Quad 90 (51cc to 90cc 2stroke/75cc to 125cc 4 stroke,) (6–15 yrs old, 6-7 yrs old limited to under 70cc 2stroke, 90cc 4stroke)

Split into two separate Classes
Class 1: Quad 90 CVT
Class 2: Quad 90 Open (Shifter or Modified Engine/Chassis)
Quad Jr (91- 200cc 2 stroke/91-300cc 4-stroke production) (13-15yrs)
No Change
Quad 50 (0- 50cc 2 stroke/0-80cc 4 stroke, (4-8yrs)
No Change
Schoolboy (86cc-125cc 2 Stk/86-250cc 4 Strk) (12-15yrs)
12-16yrs
Women (80cc - Open)
99cc-250cc (12+ yrs)
125 A (100cc - 125cc 2-stroke, 126cc - 250cc 4-stroke, A riders)
Discontinued Class
125 B (100cc - 125cc 2-stroke, 126cc - 250cc 4-stroke, B riders)
Discontinued Class
125 C (100cc - 125cc 2-stroke, 126cc - 250cc 4-stroke, C riders)
Discontinued Class
16-24 A (91cc - Open)
14-24yrs
16-24 B/C (91cc - Open)
14-24yrs
250 A (126cc - 250cc 2-stroke, 251cc - 450cc 4-stroke, A riders)
122cc - 250cc 2 Strk or 4 Strk (Replaces old 125A Class)
250 B (126cc - 250cc 2-stroke, 251cc - 450cc 4-stroke, B riders)
122cc - 250cc 2 Strk or 4 Strk (Replaces old 125B Class)
250 C (126cc - 250cc 2-stroke, 251cc - 450cc 4-stroke, C riders)
122cc - 250cc 2 Strk or 4 Strk (Replaces old 125C Class)
Open (251cc - 500cc 2-stroke, 390cc - 650cc 4-stroke, A riders)

Open A (122cc - Open 2 Strk or 4 Strk) (Replaces old 250A Class)
Open B (122cc - Open 2 Strk or 4 Strk) (Replaces old 250B Class)
Open C (122cc - Open 2 Strk or 4 Strk) (Replaces old 250C Class)
+25 A (25 years and older, A riders, 86cc - Open)
No Change
+25 B/C (25 years and older, B/C riders, 86cc - Open)
No Change
+30 A (30 years and older, A riders, 86cc - Open)
No Change
+30 B/C (30 years and older, B/C riders, 86cc - Open)
No Change
+40A (40 years and older, A riders, 86cc - Open)
No Change
+40 B/C (40 years and older, B/C riders, 86cc - Open)
No Change
50 Jr (0-51cc Stock motorcycle division age 4-6 years old)
No Change
50 Sr (0-51cc Stock motorcycle division age 7-8 years old)
No Change
50 Mini (0-51cc Stock motorcycle division age 4-8 years old) Oil Injected, Single or Multispeed. Must be PeeWee Class bike. Click Here for qualified bikes noted as Class 3 or 4)
No Change
65 Jr (0-65cc modified motorcycle division age 7-9 years old)
No Change
65 Sr (0-65cc modified motorcycle division age 10-11 years old)
No Change
85 Jr ( 0-85cc. modified motorcycle division age 7-11 years old)
9-11 years old
85 Sr (0-85cc modified motorcycle division age 12-15 years old)
No Change
Supermini (80-105cc) (12-15yrs)
79cc-112cc 2 Strk / 75cc-150cc 4 Strk (12-16yrs)