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Race Classes |
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| Ages | Class | Weight | Engine | Exhaust | Clutch | Tires | ||
| 5 - 7 | Kid Kart | 150 | Comer C-50 or C-51 | Spec | Stock | YHC 4.5 | ||
| Non-Scoring Class --- Transponders Optional | ||||||||
| 8 - 11 | Jr. 1 - 4 Cycle | 250 | Briggs Animal (unrestricted) | Muffler | Open | YHC 4.5 | ||
| Jr. 1 - 2 Cycle | 225 | Comer K-80 | Spec | Stock | YHC 4.5 | |||
| HPV-1 | 240 | Horstman HPV | HPV-1 | Stock (HDC) | YHC 4.5 | |||
| 12 - 15 | Jr. World Formula | 315 | Briggs World Formula | RLV 5447-S | Stock (Titan) | YHC 4.5 / 6.0 | ||
| HPV-2 | 310 | Horstman HPV | HPV-2 | Stock (HDC) | YHC 4.5 / 6.0 | |||
| 16 & Up | Sr. World Formula | 350 | Briggs World Formula | RLV 5447-S | Stock (Titan) | YHC 4.5 / 6.0 or 7.1 | ||
| Sr. World Formula - Heavy | 390 | Briggs World Formula | RLV 5447-S | Stock (Titan) | YHC 4.5 / 6.0 or 7.1 | |||
| American Sportsman | 365 | Tecumseh H-50 | Muffler | Drum (any) | Burris M15, B-55, SS-55 | |||
| Superbox / WKA Sportsman | 350 | Yamaha KT-100 | 4-Hole can | Open | YHC 4.5 / 6.0 | |||
| HPV-4 | 340 | Horstman HPV | HPV-4 | Stock (HDC) | YHC 4.5 / 7.1 | |||
| HPV-4 - Heavy | 390 | Horstman HPV | HPV-4 | Stock (HDC) | YHC 4.5 / 7.1 | |||
| TaG | 360 + Handicap | All TaG USA approved | Spec (per motor) | Spec (per motor) | YHC 4.5 / 7.1 | |||
| TaG - Heavy | 390 + Handicap | All TaG USA approved | Spec (per motor) | Spec (per motor) | YHC 4.5 / 7.1 | |||
| 125cc Moto | 390 | All 125cc Moto | Open | Open | Open | |||
| 125cc ICC | 390 | All CIK Intercontinental C | Spec | Spec (per motor) | Open | |||
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