This is the moment a youth on a bike pulls a massive knife on a motorist in South London in the middle of the day.<br /><br />Footage captured yesterday (October 18) on Greyhound Lane in Streatham shows two men exiting a black Volkswagen that has pulled up to a side road. <br /><br />The men appear to catch the attention of two youths on bicycles, who stop in the middle of the road.<br /><br />It appears the group has an off-screen argument before one of the cyclists pulls a large knife from a sheath and chases the motorists.<br /><br />A standoff occurs as stunned bystanders witness the scene, which occurred at 4 pm.<br /><br />Another man intervenes in the heated moment and separates the group.<br /><br />The owner of the CCTV writes: "I heard a lot of shouting and was unaware as to what exactly was happening.<br /><br />"Playing back the CCTV, I could see two lads on bikes, one of which pulls out a knife in a sheath and chases off the two guy who got out of the car. <br /><br />"It was a 5th guy from across the road that broke up the fight and sent them on their way."
