Yes Vi, you have a nice example of a fixed front. I just wondered: if you steer that bike, does the pivot point go up? I would guess yes, but I think your upper body is falling into the corner and making the overall CoG go down. What is your experience with your bike? Are you still experimenting with this bike? I think the pivot point should be more to the rear (for more body rise when cornering and less pedal steer). Not sure about the pivot angle though... seems you need to lean quite a bit for a tight corner, right? Patrick Date: Wed, 28 Mar 2012 22:11:41 -0700 From: vi_vuong@xxxxxxxxx Subject: [python] Re: frame geometry and pivot angle To: python@xxxxxxxxxxxxx I have a video showing that front \ back configuration is not self stabilizing, and requires arms to stay upright, at ~1:30sec, http://www.youtube.com/watch?v=YHJqeHZEicY Vi