i cant see it being any better to use on the wheel face than a regular sv or zymol wheel brush and if it designed to be used for the wheel barrels, then it's going to take you forever to clean them with such a small brush head
LOL, yes I do have the newer Zymol brush. I have used it a few times and do like it. I use it for the face of the wheel, between spokes, and a litlte behind it where so I can come back with the Raceglaze wheel brush and quickly do the barrels. The angle of the brush does take some time getting use to but it does help a but doing the spokes. All in all, some may not like it but I do, stiffer bristles than a SV brush so gives a bit more kick when cleaning also.
It is actually not that bad, can get the inner face/side between spokes easier, like I said for me it works and think it is a decent brush.