Am Mittwoch 28 Februar 2007 23:23 schrieb George Durbridge: > On Thu, 2007-03-01 at 06:51 +1000, Henry Thomas wrote: > > Dirk Steuwer wrote: > > > What would happen, if you were to pedal in the center of the front > > > wheel, like those old "penny-farthing" cycles? > > > > I have a picture of such a bike (attached) that appears to work as you > > describe here - but I don't know much about its origins or history. > > The photos are of Robert Waryszak's python, since converted into a more > conventional low-racer. The gearing was by derailleur, with the crank > bearings on the front wheel axle, the cassette near the pivot, and the > drive brought back to the front axle by a secondary chain. This > mechanism made the front end rather heavy, and perhaps more prone to > wheel-flop than it might have been. I could never ride it, but Robert > succeeded after a time, and a couple of people who were already used to > low-racers rode it without much difficulty. I don't recall pedal-steer > as having been a serious problem. hmm.. just by looking at the picture, it doesn't seem to be "that" heavy. You are missing out the front part of the frame, but gain some extra weight for the derailleur and second chain business. At least with this design, one can have 28" tyres ;-) Regards, DirkS ============================================================ This is the Python Mailinglist http://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. ============================================================