Front & rear JAK, Internal Cable Routing, Quick Release Front Wheel, 21 Speed Shimano Tourney Y Gear Set w/ EF 500 Thumb Shifter, 700x35 w/ 30 TPI Nylon Tyre, 19” Frame Height, Hybrid Standard Pedal, ISO 4210 Standard 40*170mm Cotterless, Double Wall Alloy Rims.