Alarming footage of a driver sideswiping a cyclist, hurling him from his bike on a Melbourne street, has been released by a bike advocacy group.

The video, shared on the Facebook page of the Australian Cycle Alliance, shows the cyclist travelling in the bike lane along Inkerman Street when the dark car swerves to the left and hits him.

The cyclist is flung from his bike onto the nature strip.

When he gets up, the driver gets out of the car and can be seen gesturing at the cyclist before he grabs the bike and pushes it into a nearby garden.