Used to transport bikes for a living.
You only need 3 straps....
Park it on the left side, with the bars turned to the left, and put the front wheel in the corner.
Depress the forks as far as you can & loop the straps over the ends of the bars & tighten them down so its tight.
Throw a towel across the seat, and run another strap from the left to right over the towel (stops it marking the material on the seat) if you can have a friend sit on bike when doing this, it'll help compress the suspension a little more.
Leave it in gear, and stick a piece of wood behind the back tire.
Its all about reducing the 'bounce' in the suspension.
