7. Front Axle
7.1. The location and mounting of the front axle must be standard to the Vehicle and no alteration may be made to the Chassis or bodywork to increase articulation.
7.2. The front axle may be modified or replaced.
7.3. Movement of the front axle may be controlled by the addition of springs and / or dampers or friction materials between the axle and the Chassis.
8. Safety
8.1. A roll-cage( see Ch. 7 App. 13 Diagram 61) must be fitted comprising a front and rear hoop which extend the full width of the bodywork and which maintain the minimum clearance above the Competitor’ s helmet when properly seated( Ch. 7 App. 13 Diagram 47)
8.2. Sidebars must be fitted which prevent the Driver’ s feet from involuntarily leaving the confines of the Vehicle. 8.3. A rear brace must be fitted to the rear hoop to guide and locate the shoulder straps of the seat belt.
8.4. The roll-cage comprising the front and rear hoops lateral bars side bars and rear brace must comply with Ch. 7 App. 3 Art. 20 or be to BS1387 medium weight blue band( ie a minimum 42.30x3.2mm external diameter and wall thickness).
8.5. The roll-cage must be:
a.
b.
c.
Bolted to the chassis with 3mm thick spreader plates and a minimum of two 10mm high tensile bolts at 25mm between centres per mounting( Ch. 7 App. 13 Diagram 22) or
Bolted to outriggers of 3mm wall thickness bolted / welded to the chassis using 3mm thick saddles and two 10mm high tensile bolts at 25mm between centres per mounting per Ch. 7 App. 13 Diagram 62 or
Welded to outriggers of 3mm wall thickness bolted / welded to the Chassis as Ch. 7 App. 13 Diagram 54.
8.6. Suitable head protection is strongly recommended. 8.7. A 4-point seat belt must be fitted( Ch. 7 App. 7 Art. 7).
8.8. A circuit breaker conforming to Ch. 7 App. 5 Art. 5 which is operable by the Driver when properly seated and which is clearly marked must be fitted.
8.9. The battery must be securely mounted and fitted in a sealed container or under the bonnet. 8.10. A strong and clearly marked recovery point must be fitted to the rear of the vehicle.
8.11. The seat must be rigidly located and designed to securely locate the Driver up to and including the shoulders.
8.12. A head restraint must be fitted where not integral to the seat complying with Ch. 7 App. 7 Art. 4. 8.13. The fuel tank must be located under the bonnet and comply with Ch. 7 App. 4 Arts. 1.2 – 1.9.
9. Miscellaneous
9.1. A front bumper or bush guard must be fitted to protect the chassis and bodywork. This may provide location for under Chassis protection and must provide a suitable towing point.
9.2. Under-Vehicle protection skid plates / guards may be fitted to protect the steering engine and transmission. 9.3. Ballast may be added to the Vehicle provided it is securely attached to the Chassis or skid plates. 9.4. Ballast must be located below the floor line.
Motorsport UK National Competition Rules 2026 Edition 1
Chapter 20 Appendix 13- Technical Regulations for Junior Trials Vehicles 775