I have China tires on my new 334RBTS. I am cautious since these seem to run really hot no matter what the ambient is, don't want to tear up the new TT with a blow out. Have the PSI right on the money, have terrible time with tire sway with weak side walls. My last TT I put Marathons on it and it drove perfect, even overloaded. Could drive all day long, no real concern with heat build up. Just don't have the cash to lay out for new Marathon's.
East Bound & Down- We Love Camping :)