This is driving me nuts and I don't know where else to turn

[Willow]

I live near Detroit and back in the late 70's or early 80's they used to play B-movies on the local stations on the weekends. One of my "favorites" was one about some sort of evil motorcycle gang that had a statue of a frog that kept them from being hurt. I can't really remember how it went or even if all the above is correct but it is driving me nuts that I can't come up with the title to check it out. I think they turned to stone at the end of the movie but I just can't be sure. No one I know can remember this one. Please help!

[Willow]

It may have been British.

[Psycho Circus]

The film you are after is: "Psychomania" (1973)

http://www.imdb.com/title/tt0067630/

http://www.youtube.com/watch?v=waAQd5W6Yi4&feature=PlayList&p=DE7C1B74AE24BAC2&playnext=1&playnext_from=PL&index=82

[Willow]

That's totally it! You are the best! thank you so much.

[Psycho Circus]

That's totally it! You are the best! thank you so much.

You're welcome.  

[Trevor]

Great film with photography by Ted Moore - South Africas first Oscar  winner.