§ Mr. Iain Mills
asked the Secretary of State for Transport if his Department has conducted research into the aging and useful life of car and truck tyres; and if he will make a statement.
§ Mrs. Chalker
A recent survey of worn car tyres indicated that some older tyres can develop a degree of tread separation in service. This has not been shown to be a significant cause of accidents, and there are no plans for further research at present. I have nevertheless advised motorists that, as a matter of prudence, they should check the condition of their tyres regularly.