An elderly Citi Bike rider who flipped over and landed on his head after he hit a concrete barrier is suing NYC Bike Share and DOT for $15 million — saying the accident left him unable to taste or smell.

Ronald Corwin, 74, of Connecticut, was not wearing a helmet in the October crash. Lawyer Guy Smiley said the gray barrier blended in with the street on East 56th and Madison, and the city has since painted it orange.