Posting for a mate, hes got a astra gsi turbo , 2003 model, and hes gone threw 2 sets of tyres in a year the tyres have all gone on the inside and the partly on the inside wall

He has had the tracking , wheel alinment and balancing done a few times and that didnt help

So he asked about it at a garage and they said its cause the wheels are to big 18", when he bought the car it come with 17" standard

So any advise would be apriciated thanks

 

na its not cause he drives like a wanker, its his and his wifes car and the wheels are the same width , cheers anyway