Has anyone out there heard (or have) anything about the new Carlisle Black Rock ATV tires. I will be needing new tires for my 2003 Vinson F500F and thought that they looked kind of nice but have not been able to find much about them. I've been able to find a bunch of info on the Maxxi Zilla tires. I would also like to move up from a 25" tire to a 26" tire, any recommendations or suggestions. Do mixed riding, trails and mud.