I strapped the rear end on my C50T using the swing arm. The rear does not have to be tight, just enough to prevent side-to-side movement. If the front is secured right, the bike won't go anywhere.
FWIW, for the front I used the straps that have a hook on the end. Hook on to the lower triple tree, run the strap up and over the top triple tree with a rag between the strap and the triple tree, and then out and down to your tie-down point.