Features and Performance: Motor: The Bird electric bikes are equipped with a 500W rear hub Bafang motor, which is engineered for maximum power and a smooth ride, even at top speeds13. Speed: The bikes have a maximum electric assist speed of 20 mph19. Battery: They come with a 36V / 12.8Ah removable battery that is easy to remove for charging or can be charged while on the bike. The battery is safety-tested and certified to meet top standards for electric bicycles13. Range: The pedal assist range is up to 50 miles, while the throttle range is around 20 miles3. Display: An embedded dash display is located between the handlebars, showing speed, distance, pedal assist mode, battery life, and more1. Drive System: The bikes feature a high-performance carbon drive belt system designed for rough roads and to eliminate the need for chain maintenance19. Safety and Certification: The bikes are safety certified with IP65+ water resistance19. The newer models are also UL 2859 and UL 2271 certified, covering safety regulations for the e-bike battery and the entire drivetrain4. Design: The bikes have a sleek design with options for different frame styles, including step-over and step-through frames2