Peter,

Just as a note, I believe there is currently a Greenspeed Tandem on the
IHPVA mailing list used.
They don't come along often, so you might check it out.

As far as the trike, it depends on a few areas. Budget, needs, etc. Here are
a few snippets from a trike review paper I am writing:


SNIP----
Wizwheelz Terratrike Tandem-

It is somewhat unfair to mention the Terratrike tandem, as I haven't
actually ridden one. However, a major concern that I would like to voice is
this trikes lack of fenders. It's simply dangerous to have someone that low
to the ground in the stoker position taking on road debris from the front
tires. I know because I have made the mistake of taking the fenders off my
Greenspeed tandem in the past, only to have my wife hurdled with rocks. If
you have ever ran a rock over in a vehicle and watched it spit out at fast
speeds, you get the idea. With fenders on, this simply doesn't happen.

I know, I know, the fenders are coming. I've heard that for almost four
years now. The Wizwheelz guys are great, so hopefully they are reading this
and getting the fenders on the way! It's funny as I had a conversation with
them in late August 2003, and the fenders were supposed to be on the market
the following week. Still not holding my breath. Although they do claim
"they have seen them with their own eyes...."

-----SNIP

Some areas to keep in mind on the Whizwheelz. Typically the price is great.
This is version 1.0 of their trike however, and they tend to bring in new
models quite regularly. There is a fairly good chance
that your trike will be outdated in the next few years and getting parts
might be an issue. I have a 3.2 trike that was released originally in
February of 2001, actually purchased a few months after that, and it is
considered "Vintage" by the Wizwheelz timeline (see evolution of the
terratrike link off the wizwheelz home page). Come on, this trike is only
two years old!

Pro's
Great Price
No Sales Tax for most states!
Good Customer Service
Been in business for many years
Should command great resale value

Con's
Version 1.0, actually 1.3 but it is the first to hit the market.
No Fenders
Appears that seat adjusting still has falacies like current trike
terra-trike models
Minimal Stoker Size adjustment (Short 38 -43 and Medium 42-46)
Transportation. No S&S Couple option leaves minimal shipping and
transportation options.


It might sound like I am "anti-wizwheelz", but actually just the opposite. I
have owned three of their trikes and can pretty much guarantee I will own at
least three more in my life (if not more ;-).


Greenspeed Tandem-
The GTT is an awesome trike. I do own this one.

Pro's
Incredible crafstmanship
Thoughtful design
Functional
Quality Components
S&S Coupler Option for Traveling
Fenders (your partner will thank you, well probably not because they won't
know the difference of getting hit by road debris)
Mature, on the market for numerous years
Great resale value
Good Customer Service

Con's
Price. Can be as high as 5000 to 6000 or more, depending on options,
customs, etc.
New ergonomic seats have yet to be "fully" tested by consumers. Might like
it, might not.
The wait...unless you buy used.

Trice XL-
Once again, not a tandem trike I have had the option of riding. I have kept
abreast somewhat on it. Normally I hear from riders that go the Trice option
is that they found it more comfortable. But those that went with the
Greenspeed (both groups having tried both), found it more comfortable.
The Pro's and Con's won't be much different then the Greenspeed. I believe
greenspeed (from my own experience) was more responsive with questions.



Organic Engines-
They sell Tandems, but you just don't hear a lot from this company. Maybe I
am not as active in the community as I once was. Kevin Atkins from Indiana
seems to know a little
more about these folks then I do, might try him sometime for any comments.
He owns a greenspeed tandem as well though.


Now, here is my advice. If you haven't ridden trikes much before, or you are
concerned about your riding partner actually riding on a regular basis, buy
the Wizwheelz. It would be a great starter tandem, and you can always
upgrade later.
If you are a seasoned trike rider, want to travel with it much, or want the
quality and maturity of the product, go with the Greenspeed.

Let me know if this helps.

Brad