I bought this product on a friend's recommendation and am very excited. In the first application I had just sprayed and then rinsed. The result was surprising. Almost everything was clean, only the corners were a little dirty. So I have times with a small brush used in the 2nd application and behold they were squeaky clean. I have resorted to the biological variation that I have polished rims and polished should not be attacked. And this was also not the case as expected. I can only recommend this product and I would buy me time and again. Know no biological detergent for rims.
