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Class Structure

IAME Micro Swift

Top Kart USA - 317.870.3122
Age:7–10 years old
Engine:IAME Swift 60cc with factory 16mm header, factory airbox
Carburetor:Tillotson HW-31A
Exhaust:As supplied by the manufacturer
Tires:MG "SH2" Red 4.60 / 4.60
Weight:225 lbs
Notes:Must run Cadet Bodywork including Cadet nose on Cadet chassis. SFI 20.1 Chest Protectors MANDATORY for drivers under 13 years of age.

IAME Mini Swift

BBS Racing Engines - 765.730.0363
Age:8–12 years old
Engine:IAME Swift 60cc, factory airbox
Carburetor:Tillotson HW-31A
Exhaust:As supplied by the manufacturer
Tires:MG "SH2" Red 4.60 / 4.60
Weight:245 lbs
Notes:Must run Cadet Bodywork including Cadet nose on Cadet chassis. SFI 20.1 Chest Protectors MANDATORY for drivers under 13 years of age.

IAME KA100 Junior

P1 Engines - 909.948.2717
Age:12–15 years old
Engine:IAME KA100 with factory 22mm header, factory airbox
Carburetor:Tillotson HW-33A
Exhaust:As supplied by the manufacturer
Tires:MG "SH2" Red 4.60 / 7.10
Weight:320 lbs
Notes:SFI 20.1 Chest Protectors MANDATORY for drivers under 13 years of age.

IAME KA100 Senior

AEM Karting - 630.863.7898
Age:15+ years old
Engine:IAME KA100, factory airbox
Carburetor:Tillotson HW-33A
Exhaust:As supplied by the manufacturer
Tires:MG "SH2" Red 4.60 / 7.10
Weight:360 lbs
Notes:

IAME KA100 Masters/Heavy

Mill-Rite Inc. - 414.873.5858
Age:30+ years old or 15+ if driver over 200 lbs
Engine:IAME KA100, factory airbox
Carburetor:Tillotson HW-33A
Exhaust:As supplied by the manufacturer
Tires:MG "SH2" Red 4.60 / 7.10
Weight:385 lbs
Notes:

Briggs 206 Sportsman

MAC Paving - 262.334.4822
Age:7–12 years old
Engine:Briggs & Stratton 206
Carburetor:Green Slide and Lock Cap
Exhaust:As supplied by the manufacturer
Tires:MG "SH2" Red 4.60 / 4.60
Weight:255 lbs
Notes:No lay down seats permitted. CIK bodywork required. SFI 20.1 Chest Protectors MANDATORY for drivers under 13 years of age.

Briggs 206 Junior

Leslie Racing - 815.685.4650
Age:12–15 years old
Engine:Briggs & Stratton 206
Carburetor:Yellow Slide (#555741-0.570”) and Lock Cap
Exhaust:As supplied by the manufacturer
Tires:MG "SH2" Red 4.60 / 7.10
Weight:320 lbs
Notes:No lay down seats permitted. CIK bodywork required. SFI 20.1 Chest Protectors MANDATORY for drivers under 13 years of age.

Briggs 206 Senior

Lawson Speed Shop - 440.567.9594
Age:15+ years old
Engine:Briggs & Stratton 206
Carburetor:As supplied by the manufacturer
Exhaust:As supplied by the manufacturer
Tires:MG "SH2" Red 4.60 / 7.10
Weight:360 lbs
Notes:No lay down seats permitted. CIK bodywork required.

Briggs 206 Masters/Heavy

Greyhound Racing Seats - 330.233.3145
Age:30+ years old or 15+ if driver is over 200 lbs
Engine:Briggs & Stratton 206
Carburetor:As supplied by the manufacturer
Exhaust:As supplied by the manufacturer
Tires:MG "SH2" Red 4.60 / 7.10
Weight:390 lbs
Notes:No lay down seats permitted. CIK bodywork required.

Shifter Senior

FZ Engines -
Age:15+ years old
Engine:KZ | IAME 175 SSE | ROK | Moto
Carburetor:As supplied by the manufacturer
Exhaust:As supplied by the manufacturer
Tires:MG "SM2" Yellow 4.60 / 7.10
Weight:KZ - 415 lbs | IAME 175 SSE - 415 lbs | ROK - 405 lbs | Moto - 380 lbs
Notes:1. Motos must run SKUSA- or WKA-approved exhaust pipe and silencer

2. Motos must use airbox silencer. No open air filters are permitted

3. If a driver is 25 lbs over weight with zero weight bolted to kart in their engine class he/she may move up to the Master class

4. Entrants will be limited to two sets of tires per race weekend (excluding rain tire use, if necessary)

Shifter Masters

FZ Engines -
Age:30+ years old
Engine:KZ | IAME 175 SSE | ROK | Moto
Carburetor:As supplied by the manufacturer
Exhaust:As supplied by the manufacturer
Tires:MG "SM2" Yellow 4.60 / 7.10
Weight:KZ - 415 lbs | IAME 175 SSE - 415 lbs | ROK - 405 lbs | Moto - 380 lbs
Notes:1. Motos must run SKUSA- or WKA-approved exhaust pipe and silencer

2. Motos must use airbox silencer. No open air filters are permitted

3. Entrants will be limited to two sets of tires per race weekend (excluding rain tire use, if necessary)