The Worksman HHS7 features an upright position for a higher riding view, ideal for novice and intermediate experience recreational riders. Built from T6 aluminum alloy, this model is engineered to be lightweight, comfortable and efficient. The frame has a adjustable range of +/- 4 inches adapting to riders of different sizes or growing with a younger rider. Shifting is supported by a Shimano 7-Speed hub and the braking is handled by a coaster brake which is concealed and protected from the elements. All wheels have a quick release system allowing this model to be easily disassembled for storage and transportation. Full list of model specifications below. Frame: T6 Aluminum Alloy Freewheel: Shimano Hub Sprocket 18T Fork: Steel Alloy Derailleur: Shimano Internal Hub Color: Yellow Saddle: Foam Seat w/ Backrest Head Set: CS-560 1 1/8th" Foot Rest: Velcro Belt Tires: Maxxis C-917 20" x 1.5" Handlebar: Dual Position Handle Grip Front Hub: Shimano Nexus 7 Speed Brake: Shimano Coaster Rear Hub: Alloy Sealed Bearing Rims: DM24 20" Chainwheel: Apex FCS20 38T Dimensions: 68" Long/ 29" Wide