So I just put mon some 18x8 rs4 reps, and some nitto neo gen 245/40 18 tires. My tire guy is worried that inflating them clost to max will ballon the center of the tire, and create overneeded wear down the center of the rubber. Anyone else have rims and tires those sizes, and if so, what pressure are you running? We decided on putting 35 in for now. Any help would be great. Thanks!

 

I have the 18x8 S-Line wheels with 235/40R18 Dunlops, which I keep at 40 psi. I ran the stock ContiSport2's at 40, also, and didn't notice any wear problems.