Molly Gooch, 7, of Scarborough is helped by her dad, William, as she tests a bike at the Great Maine Bike Swap at USM in Portland on Sunday. Looking on is Molly's mom, Kristin. Jill Brady/Staff Photographer
James Spear of Portland inspects the brakes on a bike while visiting the Great Maine Bike Swap at USM in Portland on Sunday. Jill Brady/Staff Photographer
Potential buyers inspect bikes at Sunday's Great Maine Bike Swap at USM in Portland. Jill Brady/Staff Photographer
Hank and Sara Sirois of Windham watch as their son, Henri, 2, tries out what would be his first two-wheeler at Sunday's Great Maine Bike Swap at USM in Portland. Jill Brady/Staff Photographer
Serena Coughlin of South Portland waits to pay for a mountain bike she found at Sunday's Great Maine Bike Swap at USM in Portland. Jill Brady/Staff Photographer
Willy Kessler, 4, of Portland cruises during a test drive on his new bike at Sunday's Great Maine Bike Swap at USM in Portland. Jill Brady/Staff Photographer
Riders test bikes at Sunday's Great Maine Bike Swap at USM in Portland. Jill Brady/Staff Photographer
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