ClassesGeneral Tech Regs for Class 1 Class1 – Vintage Class 1 – Historic Class 1 – Classic & Pre 89 Formula A – Pre 95 & Pre 2000 TKMRR – Junior TKMRR TKMRR-Heavy Class 4 Historic Class 4 125 P&R Class 4 Classic Sporting Regulations Class 4 Historic 210 National & 250 International – karts & engines built between 1971 to 1978 4 Historic 210-250 Printer Version
