James O'Brien is Leading Britain's Conversation.
29 July 2017, 14:12
A video shows the moment an angry cyclist attacks an elderly driver in a road rage incident.
A cyclist can be seen throwing his bike down to the ground before he opens the man's car door and attacks him.
It’s not clear why the fight started.
The incident happened on a busy road in Slough, Berkshire earlier this week
The footage was obtained by the BBC from a man who asked to remain anonymous.