NSW bikie brawl injures innocent man

A brutal bikie brawl in the driveway of a home in Sydney's west has left an innocent bystander in hospital and five men with a court date.

The fight started after six men arrived in two cars at the front of a house on Hassall Street, Parramatta, on Tuesday afternoon.

As soon as they stepped out of the cars, the gangs allegedly began punching and kicking each other, police said.

A 50cm metal pole is also believed to have been used as a weapon.

An uninvolved seventh man, who was walking past the house when the bout began, was chased down the street and hit in the back of the head.

The 28-year-old was taken to hospital in serious but stable condition with a fractured skull and a cut to the back of his head.

Police broke up the fight and arrested the six men who have links to the Hells Angels Outlaw Motorcycle Gang.

Two of the men involved in the melee also received head injuries and were treated at the scene by paramedics.

Five men were charged with affray and other charges, and will all face Parramatta court in the next two weeks.

The sixth man was released pending further inquiries.