Home in Canada I have a set of cones to hold wire wheels properly on a balancer one goes into the rear taper of the wheel and the other on the outer taper where the wheel nut holds the wheel on the hub , this is the only way to hold a wheel for ballancing .
Kits of tapers are available or if you have a lathe you can run some off .
It’s woth it as NO other way works properly .
Dave