Schwinn Twinn Adult Tandem Bicycle, Low Step-Through, 26-Inch Wheels, Medium Frame, GreyBrand: Schwinn Color: Grey Features: Hit the road with a friend with the Schwinn Twinn Tandem Bicycle. This Schwinn aluminum tandem frame features an extra low step thru rear bar to comfortably fit smaller riders. A 21 speed Shimano EZ Fire trigger shifters and a Shimano rear derailleur provide an extended gear range and smooth shifting on every ride. Mechanical disc brakes offer superior all condition stopping power on the road and on the trail. The