Hello: I bought a set of 4 wheel spacers for my S3. They are 10 mm after what I read from here. They are just flat and have a smal indent around the inside of the surface which goes against the hub. The problem is i get a lot of vibration (wheels have just been balanced), and it just doesn´t seem safe, as the wheel cannot hang anymore from the hub. Is this the type of 10mm spacers you have on your S3s? I will post some pics when I get my camera back. I have seen a pic of the spacers forge do, and I would like to know if there are 10mm spacers with that type of design. Thanks!!!