I'm about to order new tires for my bike. Official word is she requires 110/80v-18 in the front and 160/70V-17 (or ZR) in the rear. I have had great experience with the Commander II line. Got 16K out of a set on my last bike and they were still doing okay at the end. What I'm seeing here and on the web is that michelin makes the rear one, but not the front. They do have a 110/90-18. Is it a big deal to run a slightly taller front tire? The majority of folks on here who run commander IIs rears seem to be running a different tire on the front, particularly michelin Activs. Any thoughts on this? How do the Activs hold up for mileage compared to the Commander II?