A serial flasher is riding around Queens on his bike exposing himself to teenage girls. Now police need your help cracking the case. NY1's Clodagh McGowan has the story in this Crime Stoppers report.

Anyone with information on the case should contact the Crime Stoppers hotline at 1-800-577-TIPS, or text CRIMES and then enter TIP577, or visit www.nypdcrimestoppers.com.