that's why you NEED an EZ.. DudeI find that most wheel brushes are made from stiff bristles and some strands of twisted metal , I wouldn't clean my chimney with most of them let alone my alloys. The best one I've found is the green one from halfords in Rorywquin's photo. Cleans the whole width of the alloy and no nasty metal bits to scratch the alloy. The only problem, not the brush's fault, is that I can't get it past the caliper on my C class.