A survey of used tyres – often called part worn tyres – has shown that many are potentially dangerous. TyreSafe (a not-for-profit organisation) carried out a study which involved the purchase of 50 random part worn tyres from retailers across the UK. It found that 98 per cent were being sold illegally as they did not meet current requirements, but more seriously, over a third of the tyres were found to contain potentially dangerous forms of damage or non-compliance.