ClassesGeneral Tech Regs for Class 1 Class1 – Vintage Class 1 – Historic Class 1 – Classic Class 1 – Pre 89 Formula A – Pre 95 & Pre 2000 TKMRR – Junior TKMRR TKMRR-Heavy Class 4 Historic Class 4 125 Classic Class 4 250 Classic Class 4 125 P&R Sporting Regulations Class 1 Vintage For karts & engines first built up to 1971 2021-Class-1-Vintage Printer Version
