This is the ONLY way to tied your bike down! (Notice that, purely coincidentally it's an RSTD in the video!)
You don't have to use the "Tank Straps". They are fantastic, but any quality heavy duty ratchet strap will work.
It's the method/tie down point that is key. This method does not compress your supension and allows the bike to float as it would when ridden. No need to adjust your air ride pressure or any other adjustments.
I have used this method many times with great success.
DO NOT TARP YOUR TRAILERED RSV! It will destroy your paint.