A video has been released showing PC Steve Lovering being hit by a Seat Leon on Ashes Road, Oldbury.
PC Lovering spotted the car which he thought could have been one of two recently stolen.
He pulled up alongside the vehicle and recognised the driver as Callum Fellows – whose name had been linked to the stolen cars.
WATCH the incident here:
Fellows, 18, reversed and then deliberately drove into PC Lovering’s BMW, sending him sprawling into the road.
The officer calmly radioed in details of what had happened, and where the car was headed as it sped away on the wrong side of the road and through red lights.
Several passers-by approached the officer to check that he was OK and help him get his bike upright.
The Leon, which was on false plates, is suspected to have been stolen from a car key burglary.
PC Lovering later picked Fellows out in an ID parade. He has now admitted assault, dangerous driving, criminal damage, and driving while disqualified over the attack, on August 27.
He has also admitted receiving stolen goods, three other charges of dangerous driving and disqualified driving, as well as stealing a motor vehicle.
Fellows, of Mervin Road, Wolverhampton, is now awaiting sentence.
PC Lovering said: “It was pure luck that there weren’t any cars near me when I was knocked off the bike, as it could have been much worse.
“I had some some back and shoulder pain, but nothing was broken.
“It was really heartening to see so many people stopping to help and check that I was OK and offer their help.”