Recently I have finished my Python and Jetrike combination. See http://cycle.free-creativity.com for pictures. The trike handles rather well and will do duty as a utility vehicle to pull a big trailer. I still want to redesign the front part to get a better strenght/weight ratio and add mountings for a fairing. But that will be a next project. Adding rear brakes will be first priority. Many thanks to Jürgen and Henry for sharing their ideas! It really helps when you don't have to start from the bottom. Patrick