20" alloy foldable light electrical bike 1.PAS: Nonzero start, 3rd Gear Assisting 2.Derailleur: 7-speed SHIMANO 20" alloy foldable light electrical bike Battery24V, 8.5AH, LithiumMotor200W BrushlessFrameAluminum AlloyPASNonzero start, 3rd Gear AssistingDerailleur7-speed SHIMANOBrakeV-brakeWheel20”Max speed25km/h(pure electric)