Motorcyclist leaps into back of moving truck that had just knocked him over

A video has emerged of things getting very heated after a road traffic incident in Los Angeles.

It was filmed by the dash camera of a truck behind the incident as a group of lane-splitting motorcyclists approach a white pick-up.

After the first motorcycle is seen to swerve a little to avoid the pick-up, the motorcyclist on the second bike hits the side of the vehicle with his hand in what he claims was meant to warn the driver he was there.