Folding bike with three wheels? of course. Swingtrike folding bike is somewhat different than usual. It has 3 wheels, 2 wheels and 1 behind the front wheels. With a diameter of 20 “in front and 16″ in the rear. With the aluminum frame of 7005 made ??this bike weighs a fairly light yet sturdy. Folding bike is unique, because the pole behind the bike apart to stay balanced when turning. Using 9-speed drivetrain from Shimano, available options for the bench addition seat for children on bicycles and luggage rack. Equipped with 2 disc brakes in the rear (double pulling and parking function).