i have just recently fitted a set of 13" compomotive light weight alloys to my vw lupo and it looks amazine. the front are fine and the rear fit perfectly but when am driving above 10mph the rear start making a loud clicking sound like the wheels are touching something and gets louder when i brake. the faster i go the louder and more freqent it gets . i checked and it not touching anything, i also fitted a set of 25mm spacer and made it no difference. can anyone help. thanks