Warranty: 3 months for motor Battery: 1 months Note for the interval: may vary according to the driver's weight driving speed road condition and temperature. Battery capacity and scale: 18ah 38v 20-35km Tire size: 10-inch vacuum tire Motor power: 1000w brushless Load time: 5-6 hours Safe climbing angle: about 25 degrees Temperature: -10 c ~ 40 c Maximum load: 150kg Max speed 50km/h Product specification: Advantage: front and rear suspension front and rear disc brake LCD display folding handlebar double locking system. Portable design with the appearance of the sense of science and technology. An environment-friendly product that can be easily taken with you when you go everywhere. Light but strong construction. Comfortable riding and easy operation. 500 w rear engine with full suspension more Comfortable Powerful. Front and rear brake system with led light tail light brake light. Convenient usb connector on the handlebar. LCD display to show travel speed cruise control track battery status total travel speed switching function etc. Net weight 25 gross weight 30KG