Class
Structure
Kids do not
have to run the Novice class. Kids can enter any class.
If a kid or
adult enters the Novice class, they
can not
enter any other class.
F1 - 100cc air cooled, manual clutch 4
stroke, 111cc air cooled auto clutch 4 stroke, 50cc liquid cooled
2-stroke, 60cc air cooled 2-stroke
F2 - 136cc air cooled 4-stroke, 65cc 2-stroke
F3 - 151cc air cooled 4-stroke, 72cc 2-stroke
F4 - 85cc 2-stroke, 176cc air cooled 4-stroke
F5 - 105cc 2-stroke, 150 water cooled
4-stroke, 176cc air cooled 4-stroke
SuperMoto Unlimited to 625cc single cylinder,
no GP chassis
Kids novice C - F1 bike rules, kids 5-14,
Kids novice B - F2 bike rules, kids 5-14,
Kids novice A - F3-4 bike rules, kids 5-14,
Adult novice - any F1-F4 bike,14-up,
NSR 50 Bike must be factory stock
Thumpstar Spec Class
HW 195lbs and up
LW 194lbs and under
-
1. Must run a Thumpstar TDX Super
Motorcycle
2. Motorcycle must pass pre race tech
3. Motorcycle must be stock in appearance and must retain Thumpstar
decals. Color changes of bodywork allowed. Additional stickers allowed,
but must not cover stock stickers.
4. Must use stock motor. NO MOTOR MODIFICATION ALLOWED. Motors will have
a seal and must be unbroken at tech to enter class.
5. Electric starter must remain on motor, but battery and wiring may be
removed. Bike must run stock ignition. No aftermarket “Black boxes”
6. Must use stock carb. and intake. No modifications allowed. Jetting
changes are allowed.
7. Must use UNMODIFIED stock exhaust.
8. Gearing changes are allowed.
9. Must use stock fork and shocks. Springs, valving and oil may be
changed.
10. Must use stock brake master cylinders, calipers, and rotors. Brake
pads may be changed to aftermarket.
11. Must use stock supplied 12” wheels.
12. Tires must be commercially available DOT tires. No slicks or rain
tires.
13. You may change handlebars, grips, and levers.
14. If it doesn’t say you can change it, don’t!
VETS
1. 40 years old and older
2. Any F1-F5 bike
3. You can still enter your regular classes
