Harvey (not Richard, Ray, or Components) Sachs wrote:
>...why not go with a pair of front wheels instead of back ones?
>That would eliminate the need for any differential, etc. Use a conventional
>frame driving a single back wheel, and two front wheels...
There's the Newton (not the PDA!) from Roman Road Cycles <http://www.ddol-las.fsnet.co.uk/romanroad.htm>. There's conversions available for bicycles.
Roy "working today" Drinkwater
Lititz, "hopefully no calls" PA