From all the sites I have checked it looks like the trailer restraint is no longer available or out of stock for quite a while. Could someone that has one take some measurements for me? Going to build my own. The main thing I need to know is the width between the verical tubes (inside-inside), lenth of the verticle tube from the bottom cross bar to the axle pin tubes, width between the axle pin tubes and finally the diameter and lenth of the axle pins. This info would be greatly appreciated. Getting ready to head to The Dragon next month and want to trailer the bike there.