I run these tires on my parking lot basher car, a yokomo CGM with a Novak 5800 motor and a 68 Camaro Body and they work perfectly fine for their intended purpose... They are not Race tires unless you are racing a nostalgia class with muscle car bodies...
crazyjr, 26m and 30mm are the widths, NOT the diameters, it will not make a tail happy car.... A dbox is a Futaba Heli gyro that you paid a lot more for, that's it....