Originally Posted by
prathmann
Yes, you can clamp an old QR front hub to the back of your bike's rack and then attach the towed bike's fork to the hub. The front wheel of the towed bike can be strapped to the frame's main triangle.
When doing this, it depends completely on how well the hub is attached to the rack and that you've done it in such a way that the hub can rotate allowing the towed bike to pivot up and down over bumps.
I was unsuccessful in this one too. It's another one of those things that works well conceptually, but not well at all in the real world.