Razor Power Core E90 Electric Scooter New power core Technology and design features 2x the increased ride Time and 50% more power than the original Razor E90 Maintenance free with no Alignment, no chain, and no chain tensioner needed Speeds up to 10 mph with up to 80 minutes of continuous use Features a kick start, high-torque hub motor, push-button throttle, hand-operated front fender brake, urethane front wheel, and retractable kickstand Recommended for ages 8 and up; supports riders up to 120 pounds