Two menaces riding a Citi Bike smacked a man and a woman dressed in traditional Jewish garb in the head in Brooklyn — and cops are investigating the incidents as possible hate crimes, police said.

A 43-year-old man told police he was walking at the corner of Wallabout Street and Walton Street in South Williamsburg around 7:30 p.m. Thursday when two strangers on an e-bike rode up from behind and a passenger who was sitting on the front of the bike slapped him in the back of the head.

The man, who wasn’t identified, refused medical attention.

A 24-year-old woman, who was about a half block away and also dressed in traditional Jewish attire, told police she was slapped in the back of the head right after the first victim was struck.The woman was hit in front of 184 Wallabout St. She also wasn’t physically injured, police said.

Police released photos of the suspects, including an image showing one of them sitting on the bike’s front basket. The NYPD Hate Crimes Unit is investigating. 

Anyone with information in regard to this incident is asked to call the NYPD’s Crime Stoppers Hotline at 1-800-577-TIPS (8477) or for Spanish, 1-888-57-PISTA (74782). The public can also submit their tips by logging onto the Crime Stoppers website at https://crimestoppers.nypdonline.org/, or on Twitter @NYPDTips.