Eligible Karts
Based on tyre width and chassis design changes as they occured. Periods refer to the first production date of the kart rather than the actual date of manufacture. The chassis-engine-tyre combination must comply with the category shown below. Where the chassis, engine or tyres are from a later period the kart will be considered to be in that catagory.
| Veteran | Up to end of 1963 | Veteran karts will run tyres not exceeding 4” wide across the shoulder section of the tyre. |
| Vintage | 1964 to end of 1971 | Vintage karts will run tyres not exceeding 4” wide across the shoulder section of the tyre. |
| Historic | 1972 to end of 1977 | Historic karts will run tyres not exceeding 6” wide across the shoulder section of the tyre. Class I karts may only use rear axles up to 1 inch diameter and the overall width of the kart must not exceed 1100mm. |
| Classic | 1978 to end of 1984 | Class I karts may use rear axles up to 30mm in diameter and the overall width of the kart must not exceed 1300mm. Classic karts may run tyres not exceeding 7.1” across the shoulder section of the tyre. |