Guys you did not go to my gallery and look, there is a lot more going on with this system than you realize:
1. one can place the wheel chocks anywhere in the E track allowing the bike or bikes to be loaded to maximize space and weight distribution.
2. The e track allows one to move the tiedown point fore or aft, which means you can usually position everything so the straps do not rub.
3. Tying down the rear wheel keeps the bike from shifting right to left and up and down. If the bike cannot move around it is much less likely to tip over.
4. By tying a bike down by the pegs one can back off the tension on the front forks, saving fork seals.
Sorry I cannot post to this forum but if you will go here and then click on the trailering gallery you will really see something quite different than you have seen before. Kieth
http://www.kieth.smugmug.com