A cyclist was injured when he rammed into the side of a tour bus in Times Square on Friday, cops said.

The 30-year-old man was riding the wrong way up a one-way street at 45th Street and Seventh Avenue around 11:35 a.m. when he hit the side of the bus and slipped underneath its wheels, according to police.

He was taken to Bellevue Hospital Center with a broken pelvis, cops said.

“I heard a boom — it was like a thump, not loud,” said witness Richard Garcia, 32. “I heard the bus brake up and came to a stop.”

“I looked, and I saw the guy laying on the ground. He was under the right back wheel. The bicycle was laying beside the bus. The back wheel was bent out of shape. The bus might have clipped his back wheel.”

Garcia said he saw the bus driver panicking.

“It looked like he didn’t know what to do,” he said. “The firemen told him to back the bus up.”

The passengers, looking shaken up, got off the bus, Garcia said. Groups of people ran to the injured man’s aid, putting coats over him. A traffic cop called for help, according to another witness.

“His feet were fine,” the witness said. “[EMS workers] told him to move his feet, and he wiggled his toes, but he couldn’t get up. His hands, chest area and face were fine. Maybe if it went over his chest he would have been dead.”