alloys

[truebrummie]

i have resently fitted some 225/45/17 rs4 alloys to car but have noticed a strange sound like a wirling sound when i speed up
i have double checked to see if any think rubbing but can not see any signs
so any ideas what this could be as its driving me mad
thanks

 

[Isoproturon]

Depending on how loud it is, could it just be down to the extra rubber on the road making it louder?

 

[truebrummie]

they are 225's its quite loud usually gets louder the faster i go