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| 2023 SuperNats XXVI Classes |
Class StructureThis year's event schedule promises to deliver the usual abundant track time – including opportunity for drivers to run multiple classes – with breaks in between. The classes are detailed below.Capped EntriesThis year the class capacity for all classes will start at 44. Once a class is sold out, additional drivers will be placed on a waitlist. The first few classes to warrant expansion will open to 88. THE ONLY WAY TO GUARANTEE YOUR ENTRY IS TO BE IN THE FIRST 44. We are taking this approach to accommodate shifting demand in some classes and so that we can host as many competitors as possible.SKUSA reserves the right to adjust the entry cap per class at any time, based on entry counts and class demand. The format of limiting entries and classes provides 5 days of virtually non-stop racing action. To quote Steve McQueen, "Racing is life. Anything that happens before or after is just waiting." To ensure your spot in this year’s event, enter early or you may miss out. Classes Confirmed for 88
Event ScheduleAn event schedule will be released at later date, but it will be similar to years past. The air cooled classes will run primarily in the morning, and the water cooled classes in the afternoon.Need Proof of Driver AgeAll Drivers must assure that their date of birth has been verified by SKUSA with a Birth Certificate, current passport, government ID or driver's license at time of Online Registration. If it has not, email it to This e-mail address is being protected from spambots. You need JavaScript enabled to view it or fax it to 1-951-491-0809. Your entry will be placed on hold and not processed without it.ALL CLASSES REQUIRE THE FOLLOWING
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Pro Shifter sponsored by PSL Karting |
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| Engine: | KZ 125cc |
| Age: | 15+ |
| Weight: | 390 lbs |
| Tires: | Evinco Red 'SK-M' Spec from SKUSA |
| Kart # | 200-299 |
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Master Shifter sponsored by Peterson Wealth Management |
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| Engine: | IAME SSE 175cc / KZ 125cc |
| Age: | 30+ |
| Weight: | 405 lbs |
| Tires: | Evinco Red 'SK-M' Spec from SKUSA |
| Kart # | 600-699 |
IAME SWIFT CLASSES
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Micro Swift sponsored by Sodi Racing USA |
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| Engine: | IAME Mini Swift 60 + 16mm factory header |
| Age: | 7-10 |
| Weight: | 220 lbs |
| Tires: | Evinco Blue 'SK-H' Spec from SKUSA |
| Additional Equipment: | Neck brace & SFI-approved chestprotector required |
| Kart # | 10-99 |
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Mini Swift sponsored by TKG Kart Republic |
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| Engine: | IAME Mini Swift 60 |
| Age: | 9-13 |
| Weight: | 245 lbs |
| Tires: | Evinco Blue 'SK-H' Spec from SKUSA |
| Additional Equipment: | Neck brace required; SFI-approved chest protector required for drivers 12 & under |
| Kart # | 100-199 |
IAME KA100 Classes
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KA100 Senior sponsored by RLV |
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| Engine: | IAME KA100 |
| Age: | 15+ |
| Weight: | 355 lbs |
| Tires: | Evinco Blue 'SK-H' Spec from SKUSA |
| Kart # |
900-999 |
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KA100 Master sponsored by Inter MS |
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| Engine: | IAME KA100 |
| Age: |
30+ 21+ (200 lb racing weight of driver) |
| Weight: | 390 lbs // 400 lbs (21+) |
| Tires: | Evinco Blue 'SK-H' Spec from SKUSA |
| Kart # | 400-499 |
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KA100 Junior sponsored by Evinco Tires |
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| Engine: | IAME KA100 + 22mm factory header |
| Age: | 12-15 |
| Weight: | 320 lbs |
| Tires: | Evinco Blue 'SK-H' Spec from SKUSA |
| Additional Equipment: | Neck brace required; SFI-approved chest protector required for drivers 12 & under |
| Kart # | 800-899 |
IAME X30 CLASSES
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X30 Senior sponsored by Rolison Performance Group |
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| Engine: | IAME X30 |
| Age: | 15+ |
| Weight: | 360 lbs |
| Tires: | Evinco Red 'SK-M' Spec from SKUSA |
| Kart # | 300-399 |
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X30 Junior sponsored by SpeedLab Racing Engines |
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| Engine: | IAME X30 + 22.7mm factory header |
| Age: | 12-15 |
| Weight: | 320 lbs |
| Tires: | Evinco Blue 'SK-H' Spec from SKUSA |
| Additional Equipment: | Neck brace required; SFI-approved chest protector required for drivers 12 & under |
| Kart # | 700-799 |