1- The battery is weak, 3 bars out of 5. 2- I've had the scooter for almost two years. 3- Battery power is 48 volts. 4- The rear tire has been replaced, and the front is the original. 5- The brake sensor is broken. 6- Maximum speed is 40. 7- The light is broken. 8- The rest is fine. Contact number WhatsApp ( Phone number appears when clicking the contact button )