Hy Vi, I think not friction is used here, but instead a certain ratio of steering angles on the steering bar and the pivot. So you steer 30° at the bar and got 15° on the pivot but with less forces to be applied by the hands. Or maybe it's not directly the ratio but more the different direction of acting - pushing and pulling on the handles instead of trying to shifting it sideways. In any case the cables shoult be clamped at the pulleys to work properly. Steffen 2013/10/20 Vi Vuong <vi_vuong@xxxxxxxxx> > Could it be some sort of friction / resistance mechanism to counter steer > independently? I have tightened my handle-bar half-way, to balance hand > and foot input. It feels less confusing but hand input still seems > unnecessary 15mph for python. > > I like the folding and power transfer to the rear wheel via the middle > small wheel. Not sure about the seat though, there are plenty of folding > bikes with similar level of pain... > > Vi > > ------------------------------ > *From:* Tihamer Juhasz <balamber@xxxxxxxxx> > *To:* python@xxxxxxxxxxxxx > *Sent:* Saturday, October 19, 2013 10:57 PM > *Subject:* [python] Re: izzy bike > > Here is a video with some more detail (the third video from top): > > http://www.spi0n.com/izzy-bike-velo-chaine/ > > The pivot stabilization with the steel wires seems like the mechanism that > is the core of this invention. Would be nice to get the details of it, > possibly from the patent description. > > Tiha > > > On Fri, Oct 18, 2013 at 4:51 PM, <r.mccrady@xxxxxxxxxxx> wrote: > > Has this been discussed on the list before? > > http://www.herpiderp.com/video/806/the-bike-of-the-future-is-here#CYoZMvYEtpHlwqW7.01 > > If so, I apologize for the extra email. > > I found two things interesting: 1) The direct-drive front wheel, > apparently with some internal gearing, and 2) the steering linkage. I > haven't had time to look at these for more than about 1 minute though. > > -Rod McCrady > Los Alamos, NM USA > > > > >