i just got some grp truggy tires for my emaxx. they are handleing the the balloning problems i was having really well, although i'm not going 70mph. here's a pick. i got them premounted on 17mm rims so you'll need to use 17mm adapters. integy makes a set and they're for sale everywhere. i think you'll get ballooning problems with pretty much any mt tire/wheel combo. you need to look into the truggy tires which are lighter, narrower, some have built in ribs, and have less sidwall to stretch out.
