Class Restrictions:
- Unlimited displacement (Single cylinder)
- Max displacement of 400cc (Twin cylinder)
Rider Age Limit:
16 years old and up
Class Restrictions:
- Unlimited displacement (Single cylinder)
- Max displacement of 400cc (Twin cylinder)
Rider Age Limit:
12 years old and up
Class Restrictions:
- Unlimited displacement (Single cylinder)
- Max displacement of 400cc (Twin cylinder)
Rider Age Limit:
Junior (16+)
Sportsman (30+)
Senior (40+)
Masters (50+)
Class Restrictions:
- Max displacement of 112cc (2 stroke)
- Max displacement of 234cc (air cooled 4 stroke)
- Max displacement of 159cc (liquid cooled 4 stroke)
- Grouped with GP 190 class
Rider Age Limit:
12 years old and up
Class Restrictions:
- Max displacement up to 68cc (2 stroke)
- Max displacement up to 160c (air cooled 4 stroke)
- Grouped with GP 160 class
Rider Age Limit:
10 years old and up
Class Restrictions:
- Max displacement up to 63.9cc (2 stroke)
- Max displacement up to 145cc (4 stroke)
- Grouped with Street GP class
Rider Age Limit:
12 years old and up
