We've seen several forum threads that suggest that ACF50 attracts dirt so your bike will look pretty grubby after a few miles. Fact is, neither ACF50 or any other coating 'attracts' dirt, that stuff is flung onto your bike while your riding and there's not much you can do about it. Whether the dirt sticks there is entirely down to whether it lands on a tacky or sticky surface or a glossy one that it can't adhere too properly. If the latter then any dirt can be easily rinsed or shampooed off, (which is what we recommend you do as frequently as you can). If left to accumulate then in all probability it will harden and bond to the surfaces and take a lot more effort to shift. ACF50 is designated an Ultra Thin Fluid Coating (UTFC), some people apply several hundred times too much to their bike. The surplus simply congeals and makes for the aforementioned sticky surface, properly applied this doesn't happen.