In a message dated 07/11/2004 12:16:40 PM Central Daylight Time, jmages@xxxxxx writes: Thanks Mark, now I have got it. So both pivots have the same axis. The construction is similar to Greg K's trikes. NEARLY identical I believe! My trike has 20/20/20 wheels but the basic concept is the same. The stability issue has me bugges though! youhave to understand, I LIKE this little trike. something about it is just really cool! SUPER fun to ride and stable! I can idle along at walking speed! Another thing I MAY do is to switch to a 26 inch front wheel and give a bit longer wheelbase as well as higher speed potential. Jamie MacMenermy uses rubber or something similar to make the pivots. It isn't a "bearing" as much as a springy material. So the pivot is less prone to wild swinging about. I like Greg K's body designs too. I had thought to make an experimental body from Coroplast (corrigated plastic sign material, also known as Coroflute) I built a tail box on my current recumbent bicycle out of it and I have LOTS left! mark "Spandex is a fashion faux Pas!" Mindi, the fashion consultant.