Model: DC-7 FRAME: 28” MATERIAL: Aluminum SENSOR: Torque sensor DISPLAY: 5 STEPS LCD MOTOR: 36V x 250W, Center Motor BATTERY: LITHIUM BATTERY 36V x 10.4 AH WHEEL: TENY 6 SPOKES WHEEL GEAR: SHIMANO 7 SPEEDS MAX SPEED: 25 KM/H CHARGING TIME: 5 HOURS