At 07:33 PM 4/21/2005 -0400, you wrote: >After looking at your picture, perhaps the problem is you are seated a >little too low, and the BB is a little too high? I cut and welded, and it is better now.. Old dimensions: >> wheelbase: 132cm >> pivot: 59.5 >> trail: 23cm >> seat height: 27cm >> BB height: 52cm New: wheelbase: 132cm pivot: 64.5 trail: 23.5cm seat height: 35cm BB height: 50cm weight: 18kg http://rjs.org/gallery/python_2.jpg It is now just about ridable right off. I went down the alley for a few seconds, then ran out of maneuvering room. I really need a parking lot for practice of the feel. The turning radius is so large, relative to an upright, that you need react quickly at low speed when the frame/body starts to lean over. The handlebars may not turn out to be useful, we'll see. In any case I intend to move them under the seat for mounting the brakes and shifters. http://rjs.org/gallery/pivot.jpg is a closeup of the pivot; I thought that it would make mounting handlebars, and maybe a damper, easier. It also gives the minimum trail possible. It might be worth making the angle more like 70 degrees, but my grinder died and I ran out of welding wire, both within five minutes. BTW; it seems tieflieger.net is unavailable (?) Ray ============================================================ This is the Python Mailinglist at freelists.org Listmaster: Juergen Mages jmages@xxxxxx ============================================================