City Council Speaker Corey Johnson continued to wage his war against motorists Tuesday — declaring that cars should no longer be “king of the road.”

Responding to the death of a 30-year-old Brooklyn cyclist a day earlier — the 18th bike rider killed in the city this year — Johnson told NY1 “it’s time to reclaim our streets for pedestrians and bicyclists.”

“Enough of putting cars Number 1, and making cars the king of the road,” he added. “You’re literally taking your life in your hands if you’re not biking in a protected bike lane.”

The comments come two weeks after Johnson, an early front-runner in the 2021 mayoral race, bluntly said he believes there’s too much public space dedicated to on-street car parking and that he plans to use his clout to replace some of the spaces with protected bike lanes.

When asked if such a move would alienate car-driving voters, Johnson said it “might, but it’s a matter of life and death.”

Johnson earlier this year proposed a five-year plan aimed at getting people out of their cars — including legislation that would require the city to build 150 miles of dedicated bus lanes and 250 miles of protected bike lanes.

Johnson later told The Post he is not a frequent cyclist himself and typically takes the subway to work — although he has an NYPD detail and is “driven around sometimes.”

“Frankly, I couldn’t do my job as speaker if I relied solely on mass transit,” he said.

“So many areas in this city don’t have subways or good bus service and that’s what I want to change. I understand that people right now need cars to get around.”

If elected mayor, he claimed he would still take the subway.

The speaker also told NY1 he’s very concerned about a Metropolitan Transportation Authority reorganization plan approved by the cash-strapped agency’s board last week — as it could strip power from popular subways boss Andy Byford.

Johnson said the council plans to hold hearings on the plan to get answers.