Cops arrested a man in the Bronx Thursday night after he tried to rape an 11-year-old girl riding her bike in a neighborhood park, police said.

Javier Lopez-Bautista, 44, stopped the child inside Saint Mary’s Park on Saint Ann’s Ave near 146th Street at about 8:30 Thursday night and started peppering her with questions, according to cops. She tried to walk away but he grabbed her by the arm, saying she could not leave and pulling down her pants, officials said.

The creep then ordered the girl to her knees and exposed himself, according to police.

At that point the brave kid yelled out for help, ran from her attacker, and immediately found two housing cops who tracked down Lopez-Bautista and cuffed him around 9 p.m., investigators said.

Lopez-Bautista lives on Grand Concourse and has no previous criminal record in New York City, officials said.

He faces charges of attempted rape and attempted sex abuse.