Your tyres are in constant contact with the road and as such they suffer a lot of wear and tear, even if you drive carefully. This is why it’s vital that you keep an eye on the condition of your tyres.
Tyres are never manufactured with lumps, bumps or objects sticking in them, so if you see any of these, you’ll need to have the tyre inspected. Tyres should be examined frequently, removing stones or other embedded objects from the tread. If the tyre has lumps or bulges it must be examined by a tyre specialist since these could indicate internal damage. Remove oil or grease with a suitable diluted detergent. Always seek the help of a professional if you are unsure about any aspect of your tyre’s condition.