Hop on the Schwinn Twinn Tandem bike and create cycling memories to last a lifetime! There's a Schwinn suspension fork to soak up bumps and even a second handlebar in the back for added control. Schwinn ergonomic handlebar grips and plush fitness seats create a comfortable and enjoyable riding experience for you and your loved ones. Two is always better than one, so get the Schwinn Twinn and grab a friend! Schwinn aluminum tandem frame features an extra low step-thru rear bar to comfortably fit smaller riders 21-speed Shimano EZ-Fire trigger shifters and a Shimano rear derailleur provide an extended gear range and smooth shifting on every ride Second set of handlebars and Schwinn suspension fork put you in complete control when you ride Schwinn ergonomic grips and plush fitness saddles create a comfortable and enjoyable riding experience while mechanical disc brakes offer superior all-condition stopping power Twinn Tandem Medium has a 20” frame (Front) with a 16” frame Stoker (Rear) Twinn Tandem Large has a 22” frame (Front) with a 18” frame Stoker (Rear)