I asked this question in the Gadget area, but I think it's more appropriate I ask here... I need to replace the tires on my '99 Katana 600. The owners manual says put radials on it. They recommend a crappy Michellin model. Which I won't do. However, the previous owner of the bike put non-radials on the bike. My questions is: are radials worthwhile? What's their pros? I ask since if I replace my tires with radials, then I have to replace both front and rear. Don't want to mix radial with non-radial correct? Though much of my riding is commuting on the freeway/city, I do some pretty fun single-day weekend rides and planning a trip through the Pacific Northwest in October. Thanks!