Biker challenges driver for a fight on AYE

According to the driver (Hazrul), while driving on AYE on Dec 3 at 4.10pm, the motorcyclist kicked his passenger door twice. 

Hazrul tried to drive away to avoid a conflict, but the motorcyclist chased him. When Hazrul wound down his window and asked the rider what was wrong, but did not receive a response.
So the two stopped by the side of the road, and the biker got off his motorbike and told Hazrul that he stopped him because of his car's exhaust backfire.
He banged on Hazrul's door and  was convinced that the driver's car exhaust was illegal.
Hazrul showed him his car's certificate when the rider insisted on seeing it, following which he challenged the driver to a fight.
When the driver did not respond, he hit the car multiple times and even jumped on it.
When Hazrul called the police, the motorcyclist noticed this and rode off.
Source: Stomp

The incident was recorded clearly with a BlackVue dual channels dashcam DR650GW-2CH installed in the car. 

Tips: 
If an angry driver/ rider yells at you or shows rude gesture, try don't make eye contact or yell back. Keep your eyes on the road and ignore his/ her action. Fighting or driving angry is dangerous to both of you as well as other drivers and will cause situation to escalate. 
If you feel threatened, take steps to keep yourself safe. Note the licence plate number, make and model of the vehicle. if you're been followed, drive to the nearest police station and request for assistance.