This is bleeding edge stuff.
I join Mr. Rosen in my praise for Karl Abbe and the great Zzipper goodies. With the tutelage of David Lawson and Karl Abbe, I put together a zzip trick terra trike. I am pleased with this recumbent rocket. It is fast, stable and it looks as cool as Mr. Rosens rig. This is bleeding edge stuff. For those who wish to be on the cutting edge Zzip is your way to the front.
Geoffrey Wallace, Ph.D, terra trike