GTXR &  Bezior M3 Electric City Bike Model: M3Frame: Aluminum Alloy FrameMotor: 48V 500WBattery Capacity: 48V 10.4AHTire: 26x2.10" CSTBattery Weight: 3KGPure Electric Battery Life: 30KMAssistant Battery Life: 60KMTransmission: SHIMANO 7-SpeedBrake:...