Philly Seersucker Vintage Ride & Picnic w/John and Dawn Petty by Philly Bike Coalition published on 2018-06-05T17:41:29Z John A. Petty II and Dawn H. Petty host the yearly Philly Seersucker Vintage Bike Ride and Picnic Social -- a ride where everyone dresses up in unique, vintage clothing, and ends with a city picnic -- taking place this year on June 23. The Pettys joined the Bicycle Coalition of Greater Philadelphia podcast recently to talk about the ride -- and why they once renewed their vows after another city's Seersucker ride. Genre News & Politics