Really enjoyed the film 21 Days Under the Sky. Great cinematography, neat choppers. I would recommend it
Not exactly a movie, but I just saw an episode of Law and Order, where the victim (one always dies to start the episode off) crashed his motorcycle and was pitched off onto a metal picket fence. The female detective, the redhead with the freckles, said," Hmm, a 1970 Honda CB750, restored and in great shape. Owner must have been an enthusiast, mechanic, or a rich collector."
Turns out the bad guy had used an eye dropper to suck out most of the battery acid (leaving enough to let it start) and squirt it into the oil tank, causing the engine to seize after running a bit down the road, and pitch him off.