I have two RPM Revolver 17mm hex wheels that I glued Proline Maxx Masher 2000 wheels to and when I went to mount them up I realized I mounted them all the same direction so when put on the opposite side the tread pattern is reversed. I may throw these up for sale if anyone would be interested. They are brand new, taped, glued and never seen anything but my hardwood floor.
I would like to get $40 plus shipping for the two.