Wayne,
Looking at wheel pics on your website, i am going to bet the house your rear rim is the correct round bead type.
Compare the face of rear rim bead to that of the face on the front rim bead. The differences betwwen the two bead faces should be readily evident.
The front rim bead has an obvious flat face which is in contrast to lack of any flat bead on on rear rim.
KP has an eye like a hawk, if you send him pics, he'll be able to tell.