product size: 12 inch color: black/white//red material: high carbon steel power motor: 500w battery capacity: 20ah/25ah/30ah lithium battery max range: 20ah: about 70-80km 25ah: about 90-100km 30ah: about 110-120km (depends on the weight, speed, road condition and weather.test made on rider`s weight of 50kgs) max speed: about 30km/h voltage:48v charging time: about 6-10h expand size: 130*64*95cm net weight: about 36.5kg climbing angle: about 15-20° feature: front disc brake and rear double drum brake system, front shock absorber+ rear hrdraulic shock absorber, smart lcd display, phone holder, usb charging port, left/right turn switch, reverse function, horn, led headlight, brake tailight, turn lights, anti-theft alarm system, removable battery..syi