I have many uprights and recumbents, bikes and trikes. I build, fix, modify, and ride them all. I have many models of cruzbike, sofrider, t50, s40, v20, and have taught many people to ride them using the different models in sequence. They are my preferred Bike to ride. I have ridden them all over the continental United States. I have many experiences on this brand, and it has so many benefits and is quite tunable. The Parkers are great to work with and the Cruzbike nation is a very interactive. All you have to do is ask.