The Death Wheelers (1973)

The Death Wheelers aka Psychomania is a 1973 British outlaw biker horror film, though what hooror there is is mild or just plain weird. Lots of groovy music, groovy clothes and some groovy effects (when the gang transforms at 1:26:46!).

The IMDB synopis sums it up “An amiable, psychopathic leader of a violent teen motorbike gang is spurred by his mother, a Satan-worshiping spiritual medium, into committing suicide and returning to life as an “undead”” Its a bit of fun, extremely early 70s, but they really spread it out over 90mins. 2 stars.
Wikipedia

The Asphyx (1972)

The Asphyx, also known as Spirit of the Dead and The Horror of Death, is a 1972 British horror film / science fiction film.
A period film of rather good production values, The version I have has been pieced together to create a complete and uncut version, which is noticeable.
English country squire Sir Hugo Cunningham searches for immortality by literally ‘bottling up’ the Spirit of the Dead, or Asphyx. Photographing individuals at the moment of death the resultant photos depict a strange smudge hovering around the body. Cunningham concludes that the blur is not the soul but a force known in Greek mythology as an “asphyx”, a kind of personal Grim Reaper from Greek mythology that comes for every individual at the moment of his or her death.
A really interesting story, with lively acting and generally very production, some interesting effects as well. 3 stars!
Wikipedia