[python] Re: New Drawing: Drive system


On Friday, Jun 18, 2004, at 13:19 US/Eastern, juermaier@xxxxxx wrote:

Hi Paul,

your design is complicated and will add more weight to the front wheel,
also the lever arm for cornering will be shorter.

A great appeal of the Python is it's simplicity.
It has been difficult for me to find out how much energy is lost to friction each time the chain changes direction ..... but it is significant.
I haven't even started to build .... but if i do I'd favor hub gearing ..... I ride in very flat country ..... a 3 speed ..... the middle gear (direct drive and no energy loss) would be about 90 inches which is my most used gear in this locality. There are also reliable hub gears with many more speeds now available.
Regards to all ..... Brian in S Carolina USA

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