Alright guys here's the deal...I badly want to run a 23x3.5 front with a 18x5.5 rear. The problem is running matching tires on this set up. The wheel seller offered me Avon Cobras which I read nothing but trash about online, especially the 200 rear. Should I run an Avon 23 front and a Metzler 200/50/18 rear? Or is there another way around this?

 

Those are pretty much your two options as the only manufacturer of a 23" tire at this time is Avon. We have sold lots of 200mm Avons and haven't had any complaints thus far. So if you didn't want to run the Avon in the rear, then you are going to have to run a different brand.