Roger Houston wrote:
"sfb" wrote in message
. ..
#1 Are there names for the 1 wheel forward 2 back and 2 forward 1 back
configurations?

Delta and tadpole respectively, IIRC

#1 What are the advantages and disadvantages of the two configurations?

There are tradeoffs in the complexity of drive and steering. There probably
are other differences as well. I hope this thread doesn't get hijacked and
that more knowledgeable people contribute to it.



Speaking for US-oriented examples--
The tadpoles tend to be lighter overall and more performance-oriented.

The deltas tend to be heavier, but have two advantages: one is that they
are easier for people with limited-mobility to get on and off of. The
other is that two or more deltas can be strung-together in a sort-of
tandem if the wheel from one is removed, and then the fork of it is
hooked onto the back of the other (some delta trikes have a bracket
already for this use, but if not, making one is not hardly impossible).
~~~~~