Gary Busey is in this 70s biker flick but he's not the star despite what some of the VHS or DVD covers promise. He's not even a biker just a peace-lovin hippie. Jonathan Demme, who went on to direct SILENCE OF THE LAMBS and a bunch of other Hollywood crap, wrote the screenplay here. So there's a couple of famous links here.
The film itself takes a little while to get going but if you stick around long enough a plot actually does pop up. It's basically the story of a clash between 2 biker gangs, The Angels(no, not The Hells Angels just The Angels) and The Dragons(who are sadly not all bad-ass Asian karate killers). There's also a group of pacifist hippies that are unwittingly in the middle of all this violence. Things get rapey, revenge gets dealt out and acid gets dropped. Good but middle-of-the-road, kinda-sleazy biker action flick. AKA ANGELS, HELL ON HARLEYS. Released on video as ROLLING THUNDER which I imagine may have led to confusion with this better movie.