
| Class | Engine | Fuel / Oil | Rules | Tires | Weight | Age |
| S1 - Pro Stock Moto | Spec Honda | MS98/Motul 2T Grand Prix | SKUSA | SKUSA MG | 385 | 15+ |
| S2 - Semi-Pro Moto | Spec Honda | MS98/Motul 2T Grand Prix | SKUSA | SKUSA MG | 385 | 15+ |
| S3 - Novice Stock Moto | Spec Honda | MS98/Motul 2T Grand Prix | SKUSA | SKUSA MG | 395 | 15+ |
| S4 - Master Stock Moto | Spec Honda | MS98/Motul 2T Grand Prix | SKUSA | SKUSA MG | 405 | 30+ |
| S5 - Junior Stock Moto | Spec Honda | MS98/Motul 2T Grand Prix | SKUSA | SKUSA MG | 340 | 12-15 |
| TaG Cadet 1 | Vortex Mini Rok | MS98/Motul 2T Grand Prix | SKUSA | SKUSA MG | 242 | 8-12 |
| TaG Junior | IAME Leopard | MS98/Motul 2T Grand Prix | SKUSA | SKUSA MG | 320 | 12-15 |
| TaG Senior | Note 1 | MS98/Motul 2T Grand Prix | SKUSA | SKUSA MG | Note 1 | 15+ |
| TaG Masters | Note 1 | MS98/Motul 2T Grand Prix | SKUSA | SKUSA MG | Note 1 | 30+ |
| Rotax Micro Max | Rotax FR125 | MS93 / XPS Kart Tec | Rotax | Mojo D1 | 235 | 7-10 |
| Rotax Mini Max | Rotax FR125 | MS 93 / XPS Kart Tec | Rotax | Mojo D1 | 265 | 9-12 |
| Rotax Junior | Rotax FR125 | MS 93 / XPS Kart Tec | Rotax | Mojo D1 | 320 | 13-16 |
| Rotax Senior | Rotax FR125 | MS 93 / XPS Kart Tec | Rotax | Mojo D2 | 364 | 15+ |
| Rotax Masters | Rotax FR125 | MS 93 / XPS Kart Tec | Rotax | Mojo D2 | 405 | 16+ |
| Rotax DD2 | Rotax DD2 | MS 93 / XPS Kart Tec | Rotax | Mojo D3 | 382 | 15+ |
| Rotax DD2 Masters | Rotax DD2 | MS 93 / XPS Kart Tec | Rotax | Mojo D3 | 397 | 32+ |
Note 1: TaG Engines
Class A (Sr 375 lbs, Master 405) Rok TT
Class B (Sr 370 lbs, Master 400) Motori 7
Class C (Sr 355 lbs, Master 385) Leopard (original and MY09) & Rotax
Rotax Challenge participants are required to present a Rotax Challenge license and Engine Passport.
Click here to join Rotax
Shifter and TAG class participants are required to be SKUSA members
Click Here to join SKUSA
Attention TaG Cadet Racers: In 2013 there are 10 new Vortex Mini Rok engines available for purchase at the discounted price of $1,550, plus shipping (regularly $2,800) for Series Loyalty Members. Email This email address is being protected from spambots. You need JavaScript enabled to view it. for more info.