They show the reruns on Science Channel now. I have been watching a lot of them recently. I can't believe how many 3 wheelers are on these episodes. You usually catch them in the background or they are getting chopped up for purposes to make whatever the episode is about. But I caught the tail end of an episode today and the challenge was to build dune buggies.
The green team actually just plain used a performance 2 stroke trike. I just caught the ending so I didn't see it when they dug it out of the yard. It was painted green and definitely a 2 stroke. I got a glimpse of the gas tank and you can see where it had the indent for radiator shrouds. The fenders seemed to be a concoction that the team made up for it but they basically left it as just a trike and used it for the competition at the end of the show.
They were the green team so the trike was painted green. I couldn't tell if it was a Tecate or a 250R. It wasn't a Tri Z I could tell that much. Now I'm frantically searching the net looking for a download of this episode but haven't been able to find it. I might find it on Amazon or something. I know the episode is titled "Dune Buggies".
Just thought I'd share a finding that some of you may enjoy like I did.