Bloody Long Island riot erupts after 20 rival bikers tangle in sports bar, gas station: cops

A massive brawl erupted in suburban Long Island as 20 members of rival biker crews tangled in a bloody clash across two towns that left four people stabbed and seven facing rioting charges.

Round one of the throwdown erupted at 1683 Sports Bar & Grille in West Islip on Sunday afternoon before the crews dug in for more fighting at Phillips 66 gas station in Lindenhurst, police said.

In Lindenhurst, five miles away from the bar, round two of the fighting ballooned into a full-on street showdown — with blades drawn and blood splashing onto the street, a gas station attendant who witnessed the melee told The Post..

Five men were taken to the hospital and were treated for non-life-threatening injuries.

Four had been stabbed, while another was left bloodied, bruised and battered with blunt force wounds all over his body and face, according to Suffolk cops.

Seven unidentified men were slapped with second-degree riot charges and handed desk appearance tickets, meaning none spent the night behind bars.

Detectives stressed the investigation is ongoing and said more serious charges — such as assault, weapons possession, or even attempted murder — could soon follow.

Officials confirmed the men involved were motorcyclists, but insisted the violence was not tied to any gang or club affiliations, but offered no further details.

Police haven’t released the names of anyone involved as of Tuesday afternoon.