Looking at getting a set of Mega Mayhems at 28/11/12 and 28/9/12. Am hoping to find out if they will fit on stock rims without a lift kit or spacers? Also since Mud Zillas are stock on the 650 XMR would they fit my 650 XT? Was hoping to avoid the Mud Zillas since they seem to throw rocks very badly. Are there any other tires of similar price point I should consider? I ride a little bit of everything mud, hard pack, sand, and road. They have to ride smooth on hard pack and pavement.