Hello, Jürgen, suggested translation as follows . Cordially yours, Ghislain!
05-11-2004, 09:21 - I've tested, by putting on the 20 " wheel, an increase of positive trail...and the steering, with this set up, remains light up to bigger steering angles. With the "4bars linkage", the virtual pivot moves, causing a smaller positive trail as the steering angle increases... up to a point where it gets negative. As the trail gets negative the steering gets heavy. With the set up "4bars" lying flat, and 700 wheel, the trail is positive by 3 cms only...
05-11-2004,09:28 - as a result, I've redrawn this set up...by tilting the pivots, I tilt the trail angle too, and I get back a positive trail with the 700 wheels, similar to the one I had with the 20" wheel. All parts are cut out, works in progress...It's a pity : this sketch looks like to one of the very first I did for the "4bars", that I put aside trying to do simpler.
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