This is what I ordered.  Kind of pricey, but then so is my bike and the cars it could slam into in the garage.  It arrives on Thursday and I will let you know.  But it does fit a Vision as long as the tires are 190 or less.

http://www.cycleslider.com/

Its not "kind of pricey" if it includes the bikini model

Or wait....maybe it is very pricey if it includes her

Personally I think the Harbor Frieght unit looks fairly cheaply made. Appears to have small plastic casters, the wheel brackets look too small, overall thin metal. No brakes?

The cycleslider unit is quite obviously a much better product. However it is quite a bit more money though.

You could go with the Harbor Frieght unit and be super careful and very worried about it collapsing. Or you could go with the cycleslider unit and drive right on it and not worry much about it failing you. I guess it depends on how much you plan on using it. Going to load the bike once and put it away for the season? Maybe the Harbor frieght unit might be an ok way to go....and consider the damage that could be caused if it failed.

 Going be using it more than a few items? I'd lean towards the cycleslsider unit. It really looks like its worth the extra money....and consider the investment that you are protecting.