AUGUSTA — The Bicycle Coalition of Maine will hold the Great Maine Bike Swap on April 22 at the University of Maine’s Student Recreation and Fitness Center in Orono and again on April 29 at the University of Southern Maine’s Sullivan Gym in Portland.

According to a news release, both swaps are from 10 a.m. to 2 p.m.

Those wanting to sell bicycles should drop them off on the Saturday before the swaps from 6:30 p.m. to 8 p.m. or on the morning of the swaps from 8 a.m. to 9:30 a.m.

The swaps offer a way for people to buy affordable, used bicycles and/or to sell bicycles that they no longer need. Hundreds of bicycles of all types will be for sale, including mountain bikes, road bikes, classic cruisers, kids’ bikes and hybrids.

A large test riding area will allow shoppers to try out bicycles. Knowledgeable advisers will be on hand to help with pricing and bike fit. A video on the coalition’s website (www.bikemaine.org/events/bike-swap) explains how the swaps work.

The swaps will feature refreshments, information about Maine biking events and displays by local bikes shops and community organizations. The Portland event is sponsored by the coalition in partnership with USM’s Office of Sustainable Programs. The coalition is partnering with the University of Maine on the Orono swap.

Admission is $3, with free admission for USM and UMaine students as well as children 12 or younger. A $3 charge per bike sold and a 15 percent commission on proceeds from bike sales will support the coalition’s work to improve bicycling in Maine.

Anyone who would like to donate bikes to the Bicycle Coalition of Maine for sale at the swaps should call Fred at 712-2645 before this coming Monday. Donated bicycles should be in decent condition. All proceeds from their sale will go to the coalition.

For more information, visit www.bikemaine.org/events/bike-swap or call 623-4511.