[python] Re: Pythonjetrike

I must admit I have some sympathy for your point of view. After spending a few years commuting on my Jetrike (a 26k round trip) I came to realise that a lot of the assumptions I had made about the need for tilting geometry were wrong. Most of the time I was riding on straight roads, and when I did turn it was generally at an intersection where I needed to stop first, or at least slow down. There were a few places that had curves, but most had a cambered surface, so the radial loads were minimal. It turned out that there was only one 'S' bend on my whole commute where the trike really needed to lean. This lead me to completely rethink what I needed from a commuting bike - my conclusion was that suspension and perhaps being higher off the ground - level with motorists eye line - was probably most important - as was comfort, as well as the robustness and durability of the design and its components. I ended up making a full suspension long wheel base recumbent - with a simple direct chain line and under seat steering. It has a 1.3hz and 1.6hz spring frequency on the front and back respectively, so they both lift together after riding over a bump at about 25kmh. I have taken it on 100k rides without experiencing any soreness - aside from muscles - it has a very plush ride. The only down side is that its not great at hill climbs, because the BB is below the seat, but this improves the blood flow up to my legs - particularly when coasting for long stretches - when my legs used to suffer from getting cramps and the cold when I had the BB above the seat. Nevertheless, the poor hill climbing ability is not a great problem in the region where I ride, because it is relatively flat. The tallest hill is about 150m.