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KRA Series Class List -

*Spec tires will be mandatory for all classes whether the driver is running for points or not.

Class Name (In No Particular Order)
Weight
Tires
Notes
Mini Swift
245 lbs
MG Red
460x5
Air Boxes Mandatory
8-12 years old
All Drivers Must Use an SFI Approved Ribvest
SKUSA Engine Rules

Micro Swift
225 lbs

MG Red
460x5

Air Boxes Mandatory
7-10 years old
All Drivers Must Use an SFI Approved Ribvest

16mm Restricted Exhaust Header
SKUSA Engine Rules

Briggs LO206 CIK Senior

365 lbs

MG Red
460x5 Front, 710x5 Rear

*See rules below for max wheel width

15 and up

Factory Briggs Rules for the LO206 engine

CIK Bodywork and Sprint Style Seats Legal Only

NCMP 93 octane track race gas only, must pass tech

Scroll down to bottom of page for complete rules

Briggs LO206 CIK Super Heavy

400 lbs

MG Red
460x5 Front, 710x5 Rear

*See rules below for max wheel width

15 and up

Factory Briggs Rules for the LO206 engine

CIK Bodywork and Sprint Style Seats Legal Only

NCMP 93 octane track race gas only, must pass tech

Scroll down to bottom of page for complete rules

Briggs LO206 CIK Light

340 lbs

MG Red
460x5 Front, 710x5 Rear

*See rules below for max wheel width

15 and up

Factory Briggs Rules for the LO206 engine

CIK Bodywork and Sprint Style Seats Legal Only

NCMP 93 octane track race gas only, must pass tech

Scroll down to bottom of page for complete rules

Briggs LO206 CIK Sportsman

370 lbs

MG Red
460x5 Front, 710x5 Rear

*See rules below for max wheel width

15 and up

Eligibility - No KRA Race Wins - Final Eligibility Race Directors Decision

Factory Briggs Rules for the LO206 engine

NCMP 93 octane track race gas only, must pass tech

CIK Bodywork and Sprint Style Seats Legal Only

Scroll down to bottom of page for complete rules

Briggs LO206 CIK Masters

370 lbs

MG Red
460x5 Front, 710x5 Rear

*See rules below for max wheel width

40 years old and up

Factory Briggs Rules for the LO206 engine

NCMP 93 octane track race gas only, must pass tech

CIK Bodywork and Sprint Style Seats Legal Only

Scroll down to bottom of page for complete rules

Briggs LO206 CIK Super Masters

380 lbs

MG Red
460x5 Front, 710x5 Rear

*See rules below for max wheel width

60 years old and up

Factory Briggs Rules for the LO206 engine

NCMP 93 octane track race gas only, must pass tech

CIK Bodywork and Sprint Style Seats Legal Only

Scroll down to bottom of page for complete rules

Briggs LO206 Junior CIK

310 lbs

MG Red
460x5 Front, 710x5 Rear

*See rules below for max wheel width

12 to 15 years old

Factory Briggs Rules for the LO206 engine

Gold Carb Slide

CIK Bodywork and Sprint Style Seats Legal Only

NCMP 93 octane track race gas only, must pass tech

Scroll down to bottom of page for complete rules

Briggs LO206 Cadet CIK

250 lbs

MG Red
460x5

8 to 12 years old

Factory Briggs Rules for the LO206 engine

Green Carb Slide

CIK Bodywork and Sprint Style Seats Legal Only

NCMP track race gas only, must pass tech

Scroll down to bottom of page for complete rules

Yamaha Masters

*KRA CK4 Exhaust Pipe*
370 lbs
MG Red
460x5 Front, 710x5 Rear
Air Boxes Mandatory
30 years and up

Runs with KRA Specific CK4 Tuned Exhaust Pipe and Header Kit

Link to Pipe Kit
TaG Senior
All Weights LISTED BELOW!
SENIOR
MG Red or Yellow
460x5 Front, 710x5 Rear

Air Boxes Mandatory
15 and up
WKA Engine Rules

X30 SKUSA Rules

TaG Heavy
All Weights LISTED BELOW!
HEAVY
MG Red or Yellow
460x5 Front, 710x5 Rear
Air Boxes Mandatory
15 and up
WKA Engine Rules
X30 SKUSA Rules

TaG Junior
325 lbs.
MG Red
460x5 Front, 710x5 Rear

Air Boxes Mandatory
12-15 years old

WKA Engine Rules
X30 SKUSA Rules
Leopard 25mm Header
X30 26mm Header

KA100 Junior
320 lbs.
MG Red
460x5 Front, 710x5 Rear
Air Boxes Mandatory
12-15 years old

KA100 SKUSA Engine Rules
KA100 Senior
360 lbs.
MG Red
460x5 Front, 710x5 Rear
Air Boxes Mandatory
15 and Up

KA100 SKUSA Engine Rules
KA100 Masters
380 lbs.
MG Red
460x5 Front, 710x5 Rear
Air Boxes Mandatory
30 years and Up

KA100 SKUSA Engine Rules
125cc Shifter
ICC/Modified Moto 410 lbs
Stock Moto 395 lbs

Both engines will compete head to head with a weight break for the Stock Moto engines

MG Red or Yellow 460/710x5

Air Boxes Mandatory
15 and up
ICC - SKUSA Engine Rules
Stock Moto - SKUSA Engine Rules for S3 Class
RS Intake Boot Legal
Modified Bottom Ends Can Be Ran with Stock Cylinder, Head, Piston and Ignition Box
Unlimited (Will Run with Shifter)
Weights and Rules Listed Below
MG Red or Yellow
460x5 Front, 710x5 Rear
Air Boxes Mandatory
15 and Up
Kid Karts
150 lbs
460x5 MG Red Tires Only

Max Rear Tire Circumference
33"

Rules Here
Class will Qualify and Race
5-7 years old
All Drivers Must Use an SFI Approved Ribvest

The Honda GXH50 will be allowed to run in the class as well.


*Parilla Leopard and Yamaha KT100 Tech Rules are here

KRA LO206 Class -

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.

TaG Heavy Class -

PRD, Easy Kart Leopard - 395 lbs.
X30 - 405 lbs.
All Other Engines - 415 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)

The Motori 7 engine is NOT allowed in any KRA TaG Class.

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 and BR10EG.

Unlimited Class Weight Structure -

Any MG Tire, No minimum weight. Any single speed purpose built kart engine gas or alcohol (The two speed Rotax DD2 is allowed) is permitted. 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!


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