CHAPTER 18 KART RACING Appendix 8- General Technical Regulations
This Appendix must be read in conjunction with App. 9( Drawings) and App. 10( Class Regulations). All Karts must comply with these Technical Regulations.
Modification, addition, variation or tuning other than specifically permitted in these Regulations is prohibited. Anyone requiring clarification or definitions concerning the Technical Content of these Regulations should apply in writing to the ASN.
The approval of a Kart or component is an indication of the acceptance solely for the purpose of these Regulations and is not to be taken as a guarantee or warranty as to the standard of its design or manufacture or its fitness or suitability for any use to which it may be put.
1. General
1.1. The Scrutineer must be satisfied that a Kart is safe is of an adequately strong construction does not include any temporary components and presents no undue hazard to its Driver or to other Competitors.
1.2. Steering brakes and wheels must be adequate for speeds that are likely to be attained. 1.3. Rear view mirrors are forbidden. 1.4. Drive-by-wire and traction control devices are forbidden. 1.5. The use of titanium or magnesium is prohibited.
2. Chassis Frame
2.1. The Chassis Frame must be constructed from magnetic Steel tubing and be permanently marked with a unique number in an easily accessible position.
2.2. Cross-section is free. 2.3. The Chassis Frame must be of one-piece construction either welded or brazed.
2.4. Any form of Chassis Frame control which includes pivots, dampers or similar devices is prohibited. The addition of bolt-in torsion and / or stiffness bars is specifically permitted subject to Class Regulations.
2.5. No additional holes for lightening or any other purpose( except those required for seat fixing) may be drilled in the Chassis Frame tubes.
2.6. Only those holes shown in the manufacturer’ s homologation or in a manufacturer’ s official replacement parts list will be allowed.
2.7. Any replacement of original components and fixings must be fit for purpose.
2.8. No part of the Kart other than the bolts or clamps fixing the floor tray, the engine, the seat and seat stays or the brake discs, the front kingpin bolts, the sprocket, the wheels, the seat and the tyres may protrude below the bottom of the main longitudinal Chassis Frame tubes. The floor tray may be clamped direct to the lower edge of the main longitudinal Chassis Frame tubes.
2.9. Independent components fitted to protect the underside of the Chassis Frame tubes which may make contact with the ground are prohibited unless they are of a non-metallic type and of a design specifically approved by the ASN.( Note: Engine clamps, battery box clamps and brake disc protectors correctly positioned are exempt).
3. Dimensions( Excluding Cadet Inter and Bambino Classes) 3.1. Wheelbase
a. Non-Gearbox and KZ: Minimum 1010mm maximum 1070mm unless specified in Class Regulations.
Motorsport UK National Competition Rules 2026 Edition 1
Chapter 18 Appendix 8- General Technical Regulations 667