Classes
1. 2.5 / Cag - (Filler class) No age restrictions
1A 50cc Shifter style bikes (2 stroke), 100cc (4 stroke) (filler class)
1B 51cc or above Shifter style bikes (2 stroke) 101cc or above (4 Stroke) (Filler class)
We will run these as part of the challenge if we have a minimum of 2 racers from each country. This also holds true with Junior’s classes.
2. Production Sr
Production Jr.
3. Super-Production Sr
Super- Production Jr.
4. 40cc Open Class Sr
40ccOpen Class Jr
5. 50cc Open Class Sr. only
Rule Clarification
Juniors- Up to the age of 15
Production –
Engines are limited to 40cc air or water cooled 3- port cylinder. Carburetors will be limited to SHA 14mm. All exhaust systems shall remain stock, racing exhausts will be allowed.
Competitors may use any stock* Reed, Air box, Clutch, Wheels, and Tires.
Absolutely no modifications to engine or exhaust or other engine components are allowed. Racing cranks are not allowed. (Bike is to remain in stock form)
Super Production –
Engines are limited to 40cc air or water cooled 3-port cylinder. Carburetors will be limited to SHA 14mm.
Competitors may use any production* Racing Exhaust, Racing Crank, Reed, Air box, Clutch, Wheels, and Tires. Absolutely no modifications to engine or other engine components are allowed.
40cc Open –
Limited to 40cc
Carburetors limited to 21mm.
Competitors may use any production* exhaust, reed, air box, clutch, wheels, and tires. Anything goes you can modify everything. No combustion enhancers such as NOS may be used.
50cc Open-
Limited to 50cc
Carburetors limited to 24mm.
Competitors may use any production* exhaust, reed, air box, clutch, wheels, and tires. Anything goes you can modify everything. No combustion enhancers such as NOS may be used.
Requirements
1-Bikes must have 3-inch numbers on front to be scored. IF you don’t have a visible number with contrasting background, you will not be scored.
Last year we had a racer that put his number on the water bottle and wondered why we didn’t score him.
2-Due to track rules- all bikes must have water bottle cap secured with tie strap Duct tape or safety wire. Sorry but it only takes a minute to do. Not our rules but the track owners rules
3-Shifter style bikes must have oil drain and filler safety wired and a catch bottle for the carb.
