This is a pretty good biker movie from the early 90's. Starring Charlie Sheen and Michael Madsen this 'fact based story' is exactly what you'd expect from a biker flick. It's called 'beyond The Law' and it is here on Youtube for anyone wanting to catch a sneak of what is routine drill for outlaws everywhere, weeding out the rogue Cop in the ranks played by Charlie Sheen:-
http://www.youtube.com/watch?v=nOafGkbgQisOh yeah, it also features Robbie Robertson's 'Broken Arrow' which is one of the few power ballads of the 80's that I really like and this always reminds me of it.
Probably should have been posted in an outlaw biker thread this one but to be honest I can't think of too many outlaw biker flicks worth seeing. There's pretty much Sons Of Anrchy and this. The rest have either been 'Easy Rider' or dreadful IMO.