An NYPD motorcycle cop on Joe Biden’s detail was injured when he crashed his bike while escorting the vice president to the airport Friday, sources said.

The highway-patrol officer was riding with the motorcade across the Triborough Bridge at around 2:15 p.m. when he spun out of control, according to law-enforcement sources.

The cop was taken to Elmhurst Hospital and listed in stable condition.

Biden was in town for an appearance on the “Late Show with Stephen Colbert” that aired early Friday, as well as later 9/11 ceremonies.

He was told about the accident while boarding Air Force Two.

Additional reporting by Geoff Earle