It's a late 1970's - early 1980's futurist, post apocalyptic movie. I have no idea who starred in it or what the title is. It can only be describes as a combination of Logan's Run, Mad Max and Alice in Wonderland. It had some very freakish characters from a talking motorcycle (similiar to Kitt from Night Rider), mad scientist, a clown that could clone/multiply himself at will and your usual style futuristic bad men. I seen this movie in part back in 1986 on a New York TV station. Has anyone every seen a movie like this?

Haven't personally seen it, but possibly this?

Warrior of the Lost World (1983) - IMDb

It might be Warrior of the Lost World. But I'm not sure about that. I have a vague memory of seeing some cheapo Italian post-apocalypse flick years ago that featured the replicating clown-dude you mention, and that doesn't seem to be a feature of Warrior.