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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.
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Class Name (In No Particular Order)
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Weight
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Tires
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Notes
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125cc Shifter
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ICC/Modified Moto 415 lbs
Stock Moto 390 lbs
Both engines will compete head to head with a weight break for the Stock Moto engines
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Bridgestone YNB or YLC 450/710x5
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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
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| Yamaha Junior Sportsman |
240 lbs
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YLC
450x5
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Air Boxes Mandatory
8-12 years old
All Drivers Must Use an SFI Approved Ribvest
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| Mini Swift |
250 lbs
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YLC
450x5
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Air Boxes Mandatory
8-12 years old
All Drivers Must Use an SFI Approved Ribvest
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| Micro Swift |
225 lbs
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Air Boxes Mandatory
7-10 years old
All Drivers Must Use an SFI Approved Ribvest
16mm Restricted Exhaust Header
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Junior Novice Sportsman
Junior Novice
These classes are for less experienced kids and kids that need time to adjust to a racing environment. They are participation classes and not points classes. |
Sportsman 250 lbs
Junior 305 lbs
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Sportsman YLC 450x5
Junior YLC
450x5 front
710x5 rear
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Sportsman
Yamaha KT100 WA55 Carb
Comer K80 can also be used at 235 lbs
8-12 Years Old
SFI Approved Ribvest Mandatory
Junior Novice
Yamaha KT100 WB3A Carb
12-15 Years Old
SFI Approved Ribvest Recommended
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Rookie Yamaha
Yamaha Rookie will run with the Novice classes. Rookie Yamaha will run for points and requires a 3 Hole YBX exhaust.
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230 lbs.
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YLC 450x5
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Yamaha KT100 WA55 Carb
3 Hole YBX Can
7-12 Years Old
SFI Approved Ribvest Mandatory
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Yamaha Junior Can
(Class #1 and #2, Runs Twice) |
305 lbs
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YLC
450x5 front
710x5 rear
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Air Boxes Mandatory
12-15 years old
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Briggs LO206 CIK Senior
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YLC 450x5 Front, 710x5 Rear
*See rules below for max wheel width
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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
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Briggs LO206 Senior
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YLC 450x5 Front, 710x5 Rear
*See rules below for max wheel width
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15 and up
Factory Briggs Rules for the LO206 engine
NCMP 93 octane track race gas only, must pass tech
Traditional 4 Cycle Bodywork and Seats Legal, CIK Bodywork and Sprint Seats also legal
Scroll down to bottom of page for complete rules
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Briggs LO206 CIK Masters
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YLC 450x5 Front, 710x5 Rear
*See rules below for max wheel width
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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
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Briggs LO206 Junior CIK
This class will run on track with the Yamaha Novice and Rookie Classes
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YLC 450x5 Front, 710x5 Rear
*See rules below for max wheel width
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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
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Briggs LO206 Sportsman CIK
This class will run on track with the Yamaha Novice and Rookie Classes
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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
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Yamaha Can Senior
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335 lbs
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YLC
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Air Boxes Mandatory
15 and up
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Yamaha Can Masters
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360 lbs
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YLC
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Air Boxes Mandatory
30 years and up
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| TaG Super Lite |
All Weights LISTED BELOW!
Super Lite
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YLC or YNB
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Air Boxes Mandatory
15 and up
WKA Engine Rules
X30 SKUSA Rules
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| TaG Senior |
All Weights LISTED BELOW!
SENIOR
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YLC or YNB
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Air Boxes Mandatory
15 and up
WKA Engine Rules
X30 SKUSA Rules
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| TaG Heavy |
All Weights LISTED BELOW!
HEAVY
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YLC or YNB
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Air Boxes Mandatory
15 and up
WKA Engine Rules
X30 SKUSA Rules
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| TaG Junior |
320 lbs.
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YNB or YNB
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Air Boxes Mandatory
12-15 years old
WKA Engine Rules
X30 SKUSA Rules
Leopard 25mm Header
X30 26mm Header
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| Unlimited (Will Run with Shifter) |
Weights and Rules Listed Below
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Any Bridgestone Tire
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Air Boxes Mandatory
15 and Up
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| Kid Karts |
150 lbs
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450x5 YLC Tires Only
Max Rear Tire Circumference
33"
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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.
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*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 LO206 Bodywork Rule - The OTK M7 Driver Panel is not allowed in any KRA Series LO206 class.
KRA Briggs LO206 Senior (This is the NON-CIK class) -
Seat - Laydown and Sprint Style seats allowed
Bodywork - Bodywork can be European CIK bodywork or traditional 4 cycle bodywork
The OTK M7 Driver Panel is not allowed.
Front Wheel Width - 6 1/4" Wide Outside to Outside Max
Rear Wheel Width - 9" Rear Outside to Outside Max
KRA Briggs LO206 CIK and Masters Class Rules -
Seat - Must use sprint style kart seat
Bodywork - Must use any CIK approved European style bodywork. Rear plastic bumper is optional. The OTK M7 Driver Panel is not allowed.
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 Super Lite -
PRD, Easy Kart - 325 lbs.
Leopard, Rotax, X30 - 335 lbs.
All Other Engines - 345 lbs.
TaG Senior Class -
PRD, Easy Kart - 350 lbs.
Leopard, Rotax, X30 - 360 lbs.
All Other Engines - 370 lbs.
TaG Heavy -
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 Bridgestone 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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