Hi Listies, The other Dirk has added a page about the pivot angle and his influence to the wiki: http://en.python.data.he-hosting.de/Pivot_Angle What should follow this is a closer definition of wheel flop and pedaling induced steering. They do have in common that the front part start to wobble. Buzt what sets them apart? Isn't wheel flop also related to the wheight of the front? Does the a<b distance matter as well, besides the pivot angle? See this image http://python-lowracer.de/pics/TT%20Juergen%20Maier.jpg from Jürgens Modification page: http://python-lowracer.de/modifications.html i was going to dig through old posts and prepare an additional graphic for illustration. Should we handle the two in one wiki page? Why do we call it PSI, when we talk about pedal induced steering? Or do i mix up things here? Regards, DirkS ============================================================ This is the Python Mailinglist //www.freelists.org/list/python Listmaster: Jürgen Mages jmages@xxxxxx To unsubscribe send an empty mail to python-request@xxxxxxxxxxxxx with 'unsubscribe' in the subject field. ============================================================