From a Web site:
On July 29th of last year (1967), Dylan was riding his Triumph motorcycle to a nearby repair shop when he lost control and crashed, suffering serious injuries including a concussion, massive bruising, lacerations of the face and scalp and several broken neck vertebrae. His recovery come retirement led to persistent and often times ludicrous rumors that he was recovering from a drug overdose, was grossly disfigured, crippled, and even that he was dead.
In a recent interview he addressed for the first time his accident and his brush with death. "The back wheel locked, I think. I lost control, swerving from left to right. Next thing I know I was someplace in Middletown, I think-with my face cut up so bad I got some scars and my neck busted up pretty good. I saw my whole life pass in front of me…the fact that I made it through what I did is pretty miraculous."
Full story here:
Dylan/Triumph