Thursday, July 24, 2008

Check tyres

  1. wear indicators are built into most tyres to indicate when tread depth reaches about 1.5mm. The depth of the tyre tread above these indicators is not included in the assessment of tread depth around the circumference of a tyre.
  2. In effect, these requirements allow a tyre to be worn to less than 1.5mm tread depth on its edges, provided that at least 75% of the remaining width of the tyre has a minimum tread depth of 1.5mm around the whole circumference.
  3. The overall diameter of dual tyres on the same side of an axle is not matched within 25 mm;
  4. A tyre (including sidewalls) has deep cuts, chunking, bumps, bulges, exposed cords or other signs of carcass failure;
  5. A tyre has been regrooved (except where indicated on the side wall that the tyres are suitable for regrooving);
  6. When in the straight ahead position, the wheels and tyres and fittings (wheel nuts, grease caps etc) of any vehicle project beyond the extreme width of the mudguards or exceed the maximum width of a vehicle;
  7. Any tyre is not of a type constructed for unrestricted road use;
  8. Any retreaded or remoulded tyre is not marked with the words "RETREAD" or "REMOULD", and where speed limited the words "MAX. SPEED XX KM/H" or "SPEED LIMITED TO XX KM/H". (XX means the max speed i.e. 125km/h);
  9. A tyre fitted to a vehicle with a GVM of more than 4.5 tonnes is not suitable for road use at:

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