The best one I would rate is "The World's Fastest Indian." Such a brilliant movie, based on a true story. I would suggest all of you to watch this movie, but its' not that easy to find it.
Biker boys and Torque is just average.
Easy Rider is another brilliant movie but to watch it you need to read something about the USA of 1960s.
Wild Hogs and Ghost Rider are the recent flicks. Good ones.
And please don't talk about Dhoom.
I am looking for the movie Faster and On any Sunday for a long time. But I think I'll have to import these movies, duh..unable to find them here.