I am building a tall bike. I have a huffy exercise bike frame set up for the top, (
http://www.saltcycle.com/2008/05/converting-exercising-machine-into-tall.html )and a Peugeot (unknown model) for the bottom. Here are the associated mock up images:


The only big problem is it might be gravity-oriented to the back, so it would wheelie easily..
I am new to this, so if you have suggestions, please suggest.