4.6. Wheels and Tyres 4.1.6.1. Wheels and tyres are free.
5.7. Brakes
5.1.7.1. Vehicles must have brake systems operating on both rear wheels simultaneously by a single foot pedal which may activate the brakes either mechanically or hydraulically.
5.2.7.2. The brakes must be capable of locking the Wheels when applied at maximum speed.
5.3.7.3. A mechanical handbrake must be fitted which operates directly on both rear wheels and can hold the Vehicle on a 45 ° longitudinal gradient.
6.8. Steering 6.1.8.1. The steering system must retain its original location and operation and must be un-assisted. 6.2.8.2. Steering system components are free and may be strengthened. 6.3.8.3. A steering damper may be fitted.
7.9. Front Axle
7.1.9.1. 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.
7.2.9.2. The front axle may be modified or replaced.
7.3.9.3. 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.
8.10. Safety
8.1.10.1 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)
8.2.10.2. Sidebars must be fitted which prevent the Driver’ s feet from involuntarily leaving the confines of the Vehicle.
8.3.10.3. A rear brace must be fitted to the rear hoop to guide and locate the shoulder straps of the seat belt.
8.4.10.4. 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).
8.5.10.5. 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.
8.6.10.6. Suitable head protection is strongly recommended. 8.7.10.7. A 4-point seat belt must be fitted( Ch. 7 App. 7 Art. 7).
8.8.10.8. 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.
8.9.10.9. The battery must be securely mounted and fitted in a sealed container or under the bonnet.
Motorsport UK National Competition Rules 2026 Edition 5
Chapter 22 Appendix 20- Cross Country( Chapter 20) 857