For Princeton Councilman Tim Quinn, the 2017 Anchor House Ride for Runaways marked his 25th year of participation in the annual fundraiser. But last week’s 500-mile bike trek, in which 146 people cycled from Maryland to Trenton, turned out to be a bit more eventful than he had planned.

Last Wednesday, Mr. Quinn was thrown from his bike near Lewisburg, Pa., after his wheel got stuck in the groove of a milled surface of the road. He suffered a broken collarbone, four broken ribs, and a concussion, spending Wednesday night in one hospital and Thursday in another, for observation. By Friday evening he was back on his feet, well enough to attend the annual banquet in Bethlehem, Pa. He spent Saturday, the final day of the ride, in one of the support vehicles.

“It was a four- or five-inch drop from the regular road surface to the milled surface, and my wheel got caught. I went over and don’t really remember anything, because I lost consciousness,” said Mr. Quinn, whose day job is marketing and communications director of the Princeton Public Library. After about two minutes, he regained consciousness and was put into an ambulance.

This was not the first mishap for Mr. Quinn, who broke his collarbone 15 years ago while on the ride. That accident required surgery, but this one does not. Dr. Harvey Smires of Princeton Bone and Joint, a former Anchor House rider himself, performed the surgery and donated the money he received to Anchor House, Mr. Quinn noted.

Based in Trenton, Anchor House was founded in 1978 as a safe place for runaway, homeless, and abused youth. The annual bike ride began a year later. This year’s ride raised $460,000.

The ride concludes each year with a welcome home ceremony at Quaker Bridge Mall. Among five people marking their 25th anniversary of participation, Mr. Quinn said he was honored to be asked to lead the parade of riders.

“It was great that the ride committee wanted me to walk in ahead of everyone,” he said. “I wondered whether they’d just stash me up on stage but they thought it was important that I walked in.”

Mr. Quinn said he will be working half days this week and plans to be at the next Council meeting July 24. Next year marks the 40th year for the Anchor House ride, and he is planning to participate. “I hope to log more training miles than I did this year,” he said. “I will definitely be there.”