Weight Limits

Regulation 80 of (Vehicle Registration and Construction Regulation 2000) states:

  1. The maximum load in respect of any wheel on a vehicle is
    1. Fitted with a normal tyre – is 2.7 tonnes;or
    2. Fitted with a large tyre- 3.5 tonnes; or
    3. Is the rated capacity of the tyre,
    4. Whichever is the least?
  2. The maximum axle load in respect of any axle of a vehicle-
    1. fitted with two wheels with normal tyres – is 5.4 tonnes;
    2. fitted with two wheels with large tyres is 7 tonnes; and
    3. in any other case is 10 tonnes.
  3. The maximum aggregate axle load in respect to a tandem not being a twin axle-
    1. fitted with not less than 8 wheels – is 16 tonnes;
    2. fitted with 6 wheels with normal tyres- is 13.4 tonnes;
    3. fitted with 6 wheels with at least two large tyres- is 14 tonnes;
    4. fitted with 4 wheels with normal tyres- is 10.8 tonnes;
    5. fitted with 4 wheels with large tyres – is 14 tonnes
  4. The maximum aggregate axle load in respect of a tri-axle is 20 tonnes.
  5. The maximum aggregate axle load in respect of twin steer axles is 10.4 tonnes if the twin steer axles are fitted with a load sharing system and 8 tonnes in any other case.
  6. The maximum axle or aggregate load of any axle, tandem or tri-axle must not exceed the aggregate of the rated tyre capacities or the vehicle manufacturers rated capacity.
  7. For the purpose of this regulation, a large tyre must have-
    1. a width of not less than 330mm and an overall tyre diameter of not less than 1080mm; or
    2. a width of not less than 355 mm and an overall tyre diameter of not less than 1049mm and a tyre not conforming to the dimensions is deemed to be normal tyre.
  8. In the case of a vehicle equipped with two single axles, the proportion of weight on one axle must not be less than 20% of the aggregate of the axle weights.
  9. The maximum permissible aggregate mass, expressed as the GVM or GCM of the vehicle, in respect of all the axles of a motor vehicle, a trailer, articulated vehicle or combination vehicle is-
    1. the maximum aggregate of the axle loads in respect of all the axles of the vehicle determined under sub regulations (1) to (6);
    2. in the case of a vehicle equipped with a tandem or a tri-axle which does not incorporate a load sharing system 30 tonnes or in the case of a vehicle equipped with a tandem or tri-axle which incorporates a load sharing system –32 tonnes;
    3. in the case of a combination vehicle- 32 tonne; or
    4. the manufacturer’s gross vehicle mass or gross combination mass as the case whichever is the least.
  10. In the of any motor vehicle, trailer or combination vehicle with an unladen mass greater than 3.5 tonnes, the maximum axle loads determined under this regulation must be shown on the registration certificate of the vehicle, including the minimum tyre specification relating to such loads.
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