Basic KRA Rules
All Senior 2 Cycle Classes Must Run 460x5 Fronts and 710x5 Rear Tires (See classes page for Tire Compounds)
All Competitors Must Run the Spec Tire for their class whether they are running for points or not. (See classes page for Tire Compounds)
All 2 Cycle Classes Must Run CIK Approved Front Nose and Driver Panels - No G-Man Style Noses, complete CIK Bodywork is encouraged but not mandatory, flat side panels legal
Make sure you read any supplemental rules listed for your class on the Classes Page
Airboxes MANDATORY in all Two Cycle and Shifter Classes
All Briggs Classes Must run RLV Mufflers
All karts must have the correct numbers on all four corners
In the event of rain, KRA will race, all classes must run MG Rain Tires.
All Lead Weights must be cotter keyed or double nutted and all brakes and steering bolts/nuts must be cotter keyed
Add 20 lbs to the minimum weight if you are running front brakes in any single speed class (does not include shifter class, no additional weight needed)
Disqualifications cannot be dropped, no shows/non-entries can be dropped.
Snell 2015 or Better Helmet, Jacket or Suit/Neckcollar/Gloves are Mandatory at all Times
All MINORS must have current year MINOR RELEASE on file and signed by Parent or Legal Guardian before they can be allowed to practice or race. NO EXCEPTIONS. (Available at Track)
Two Cycle Engine Tech and chassis tech (except those noted in this supplemental page for the classes page) for all classes will use the latest SKUSA rulebook (Yamaha uses WKA Rules) - email us for clarification
Four Cycle Engine Tech and chassis tech (except those noted in this supplemental page for the classes page) for all classes will use the latest Cup Karts rulebook - email us for clarification
KRA will not use onboard video or photos to decide any protests
Video Cameras are allowed, video cameras must be mounted to the chassis or the bodywork using bolts and securely in place. Cameras cannot be attached to the driver or the helmet. In the event of a flip or contact a helmet mounted camera could cause injury.
If you need clarification on a rule please contact us
Kid Kart Drivers Must Use an SFI Approved Chest Plate at All Times While on Track!
Gas and Oil Premix Only, Must use NCMP Race Fuel
No Restrictor Plate
150 lbs Minimum Kart and Driver
Max Tire Width 450x5 MG Red Tires, Max Rear Tire Circumference 33"
KID KART RULES WILL BE STRICTLY ENFORCED! ANY KARTS OUT OF SPECIFICATIONS WILL BE DISQUALIFIED. ANY PARENTS DISPLAYING UNSPORTSMAN LIKE CONDUCT OR FOUL LANGUAGE WILL BE ASKED TO LEAVE AND THEIR ENTRY FORFEITED.
The kid kart class is for the enjoyment of the children, we ask that all parents please set a good example for all the kids in the class.
Kid Kart Comer C50, C51, C52 Engine Tech
Tech Items may be subject to comparison to known stock parts
Carb - Dellorto SHA 14-12L, .475 No Go Venturi, Jet Sizes Allowed #54 thru #58
Air Filter is non-tech
Intake manifold may not be modified
Intake Gasket must be properly installed, only one gasket allowed, you are allowed to trim intake gasket to match intake port opening
Cylinder - Head and ports must be stock, NO porting, polishing or metal removal from dome or squish area. Spark Plug hole repair allowed using full thread heli coil or thread insert, it must be full length as intended by the manufacturer
Spark Plug - OEM reach spark plugs only
CC Rule - 7.0cc, checked at TDC without head CC insert
All Bearings non-tech
Seals - non-tech, must be installed as OEM
Crank Pin and Wrist Pin must be OEM
Piston - Skirt length 1.210 minimum as measured from the bottom of bottom ring land to bottom of skirt on intake side of the piston, the top of the piston must remain stock
Rings - Must run both rings, rings cannot fall thru cylinder
Exhaust - New or Old Style Mufflers allowed, must be unaltered, one exhaust gasket, no cut gaskets, exhaust system must be tight
Clutch - Must run comer clutch shoes but non tech on size
Clutch Springs – Non-Tech
Clutch Drum - 10 tooth 219 only
Rear Axle Sprocket - 89 tooth 219 only
Coil - Blue or Black Coil - must be unaltered
Coil Bolts - Must be unaltered
Flywheel - must be unaltered flywheel key slot must remain in stock location, no cut or broken fins allowed
Taping of Flywheel Shroud is allowed
Flywheel key must be OEM and installed properly, flywheel key slot must remain in stock location
Transponders
Transponders will be used in all classes for Qualifying and Racing
Transponders are available for rent
Transponders and Brackets are available for purchase at NCMP
If you have your own MyLaps Transponder you are welcome to use it at all KRA Series events
It is the DRIVER'S responsibility, not KRA's, that the transponder is installed correctly and functioning properly on the kart. Failure to do so will result in not being scored during qualifying or races.
Transponders and Holders can also be bought online through Comet Kart Sales
KRA LO206 Classes
LO206 Engine Claiming Rule - At the race director’s discretion, the track may ‘claim’ a competitor’s Briggs LO206 engine at any time. The track will supply the competitor with a new, factory sealed engine in direct exchange for the competitors ‘as raced’ engine. If the competitor fails to comply with the claim request, the competitor will be excluded from participating for one year and will forfeit all points acquired to date. The same will apply if a claimed engine is found to be blatantly illegal.
LO206 Engine Rules - Must run RLV 5507 Exhaust Header with 4104 Silencer. All engines must run Factory Briggs rules only. No disc clutches, shoe type only.
NCMP track 93 octane LO206 race gas only, must pass tech
Shoe Type Clutch Only, No Disc Clutches
KRA Briggs LO206 Senior CIK and Masters Class Rules -
Seat - Must use sprint style kart seat
Bodywork - Must use any CIK approved European style bodywork. Rear CIK plastic bumper is optional.
Front Wheel Width - 5 1/2" x 5" Max Overall Width, Outside to Outside
Rear Wheel Width - 8 3/8" x 5" Max Overall Width, Outside to Outside
KRA TaG Class Weight Structure
TaG Senior Class -
PRD, Easy Kart - 355 lbs.
Leopard, Rotax, X30 - 365 lbs.
All Other Engines - 375 lbs
Add 20 lbs to the minimum weight if you are running front brakes in any single speed class (does not include shifter class, no additional weight needed)
X30 Engine Rules -
X30 will run under SKUSA Engine Rules with the following exceptions - Sprocket and Clutch Drum can be aftermarket but must still measure the same as OEM. Spark plugs allowed are NGK R6252K-105, NGK BR10EG and NGK 6061-10.
Unlimited Class Weight Structure
Any MG Tire, No minimum weight. Any single speed purpose-built kart engine gas or alcohol is permitted. The 2-Speed Rotax DD2 is also allowed. Carburetor or fuel injection is allowed. Any motor that is deemed possible to produce 40hp or more will be required to use front and rear brakes.
Twin or single engine formulas are permitted. In this day of spec classes in all forms of motorsports this class offers innovation and creativity to the racers. This class is truly UNLIMITED, have fun!
