Gov. Andrew Cuomo pumped the brakes on a bill approved by the state Legislature that would legalize motorized scooters and bikes.

“I have heard a number of concerns from safety advocates who don’t believe we should allow scooters, e-bikes on sidewalks with pedestrians,” Cuomo told reporters Friday in Albany, citing advocates who want a helmet-wearing requirement added to the law.

Current state and city law prohibits e-bike and e-scooter riders from streets and sidewalks. Violators face a $500 fine.

Cuomo suggested he has his veto pen ready by raising a host of questions.

“When does a bike with an engine become a bike that should be registered as a motor vehicle and licensed? Remember mopeds? At one point it’s a motor vehicle…what point is that?

“These e-bikes are new, but I think that’s gonna be a broader conversation,” Cuomo added.

The legislation would lift a state ban on e-bikes and scooters and give New York City and other localities the authority to regulate or prohibit the vehicles on streets.

New York City must pass a local resolution to allow it.

The law imposes speed limits of 20 miles per hour for pedal-assist vehicles and 25 miles per hour for throttle e-bikes used by delivery workers.

Riders must be at least 16 years old.

Mayor Bill de Blasio also raised concerns.

“We’re not going to see folks going 25 miles per hour in bike lanes intermixed with bicyclists, that’s dangerous,” he said on WNYC radio Friday.

But Marco Connor of advocacy group Transportation Alternatives blasted the worry, citing NYPD data that details only nine pedestrians injured in 2018 compared to over 11,000 whacked by trucks and cars.

“Licensing and similar proposals for e-bikes would be yet another unfounded tool in the mayor’s proven racist policy harassing food delivery workers of color, and should be dismissed outright,” he said.