Pacific Dualie Tandem Bike (26-Inch Wheels) 26-inch tandem bicycle with handcrafted, oversized Hi-Ten steel frame Reliable 21-speed Shimano drivetrain with SRAM twist shifters Shimano rear derailleur and Mega Range freewheel and overdrive 26-inch tires and 36-spoke alloy wheels provide street stability ProMax front and rear linear pull brakes; pair of comfortable sport saddles