Who needs a car?

Is that a home brew trailer or something available commercially? I've got a Carry Freedom Y-Frame and would definitely need a box or something to raise the bike above the wheels to do this... which I have thought about!

It used to be an adventure AT2 trailer for the kids but i took the seat and cover off. the box is one that my mum and dad used to use to cart around the camping stuff when we went on holiday. it's pretty heavy

next plan is to make a new box, with a hub-width attachment (or two) to at the front so i can carry bikes on it without the ratchet tie down... haven't quite worked it through yet!

I am looking at a Carry Freedom y-frame trailer.

I would look at:
http://www.carryfreedom.com/images/P_C_TourBike.jpg
and
http://www.flickr.com/photos/carryfreedom/1577231367/in/set-721576008250...

I suspect you need the 0.9 m extension arm [lowers the carrying capacity of the y-frame trailer from 90 kg to 45 kg]:
http://www.rutlandcycling.com/22344/Carry-Freedom-Y-Frame-Trailer-Access...

Obviously you need the carriers.

Hope this helps.

Disclosure: I am NOT linked in any way to Carry Freedom; or Rutland Cycling.

But I have been thinking about this problem for some time. And I own two bicycle trailers, neither is suitable for bike carrying or long loads.

Hints:
1) Look at track width [distance between wheels]. Wider is better.
2) Consider fretting due to rubbing / vibration.
3) Keep Centre of gravity as low as possible.
4) Consider the possibility of a roll-over and protect saddle, bars etc. as necessary.
5) Keep speeds down.
6) Avoid high hitches.