REBEL ROUSERS (1970) (http://imdb.com/title/tt0066286/) - Good biker film starring Bruce Dern, Jack Nicholson, and Cameron Mitchell. Some unlikely scenes in this film shot in Southern California in the desert and along the coast. Bikers take captive Mitchells wife while former schoolmate and biker Dern try to talk and stall the other bikers into leaving her alone. Besides the plot you have other fun scenes which make for good drive-in movie material. Bought this on special at Suncoast for $2.99.
(http://www.movieposter.com/posters/archive/main/5/MPW-2902)
Here are the biker films that I've seen so far:
The Wild One 
Wild Angels 
Easy Rider 
Rebel Rousers
Hells Angels 69
C.C. & Company
Angel Unchained 
The Black Six
Angels Hard As They Come 
Hells Angels On Wheels 
Psychomania 
She Devils On Wheels 
Born Losers  
Quadraphenia 
Hells Angels Forever (documentary)
			
			
			
				It's actualy from 1966, but not released until 1970 to play off of the success of Nicholson in easy rider. Not the greatest but I can't resist old crappy biker movies, too many funny parts
			
			
			
				Thanks Statcat........
Biker film I still haven't seen:
The Cycle Savages 
Werewolfs on Wheels
The Losers
On my shelve I still have:
Run Angel Run
Hells Bloody Devils
A couple noteables that have cycles in them are:
Electra Glide in Blue
Mad Max