You really gotta glue them well for sure. The set I have are good for 75-80 mph wheelspeed free-wheeling...after glueing the poorly glued spots that broke loose, lol. They like a perfect glue job, get the gluebottle with the tiny tubing inserts to get the glue in there well while peeling the rim edge back when you find a break. Then an outside bead seems to help, but make sure the main rim to tire interface is sound first. Check for the tire coming loose after running it occasionally as well. After all this they are bulletproof.
Cool! I guess they forgot to advertise a feature with those. A whole bunch easier getting pre-mounts rather than wrestling those Ofna's, eh? I might get a set if I get that Losi