hello, would like to have a few tips for tyres of the Rf 600. drive at the moment mechelin macadam 90x, but since I need a new one at the back, I think I should have something different. the macadam somehow has a funny contour on the edge. I had the feeling that it becomes a bit tilty at a strong slanting position. look for a sporty mature, but it should also last a little longer than 4000km. how about freed up? have only found a possibility on the Metzeler homepage n to come to these papers. last question: is a wider mature or dirty that only the balance? m.f.g. iggi