2021 F-Series Class Structure

Pre and Post Tech Inspection: Will be preformed at every event and is mandatory to redeem point towards the year end points championship. Tech Official will be on hand throughout race weekend to assist with any questions.

Fuel will be checked during event: Allowed fuels are VP C12 / Sunoco 110 / MS 98. Rotax engines may use the spec RMAX fuel fuel checks will be random. Technical official will be on hand during race weekends to test fuels.

TIRES will be marked and scanned with barcode scanner post qualifying weigh in, also monitored during event. Absolutely no tire prep allowed.

In the event of a wet race and the use of intermediate or full wet LeCont spec tires is mandatory. Tires must be pre ordered 14 days before event to ensure availability. Race must be 50% complete to be counted as a result in the year end points.

Please continue to check for updates since rules will be monitored and could be adjusted to continue fair competition.

For more information please contact us at 732-850-1893 or info@thefseries.com

Age 15 and up 
X-30 365lbs,  Rotax Evo 375lbs, Leopard 357lbs, X125T 365lbs

Tires LeCont White 

Gas & Oil only

Engines, exhaust and karts per F-Series Tech manual.

Formula Shifter

Age 15 and up

Weight: Rok 395 LBS 

Tires: LeCont Prime & Option

Gas & Oil only 

All Engine Rules and Regulations are as per Rok Cup USA


Age 12 to 15 years
IAME Parilla Leopard 30 mm header 325 lbs 

Junior Rotax Max FR125 EVO 320 lbs 

X125 31 mm header 330 lbs

X30 31 mm header 330 lbs

Tires LeCont Red 

Gas & Oil only.

Restrictions will be done by the exhaust header per F-Series Tech Manual.

Age 7 to 12 years 
Vortex Mini 60      240 lbs

IAME Swift 60      250 lbs 

Tires LeCont Red 

Gas & Oil only. Front Drive Gear for Both Engines must be 11 or 10 Tooth 

Engines , Karts and class specific rules per F-Series / Rok Cup Rules Manual. Chest protector is mandatory. Drivers under 8 years of age must submit racing resume and apply for F-Series competition licence to obtain race clearance.

KZ 2

Age 15 and up

Weight 385lbs

Tires: LeCont Prime & Option

All Engine Rules and Regulations are as per CIK/FIA 

Shifter Ironman

Age 42 and up

Weight Honda 405 - Rok 415 - KZ 425

Tires: LeCont Prime & Option 
Additional noise rule requirements at select venues.

Minimum 14 inch Silencer. Subject to sound check

2 Hole maximum airbox CIK/FIA only 

Mandatory Foam/Fabric air box filter element 

All stated items must be present during all on track sessions, if rules are disregarded this will result in disqualification from event. 



Age 15 and up
Vortex Rok GP 380lbs

Tires LeCont White 

Gas & Oil only engines, exhaust and karts per Rok Cup USA

On a steady path of improved rules and regulations we are driven to continue to fine tune what will become the best service in the business. Striving to provide fair and fierce competition our team of dedicated officials are always willing to help answer any concerns at the track or off. 


We want nothing more than to keep you having a good time. 

 A disqualification for misinformation is heartbreaking for you and us! Please use the link above to ask any questions you might have in regards to rules and regulations. 

why choose us

We’re committed to working hard to serve you better.