Product performance parameters: Item Specification Product Description Performance maximum cruising speed of about 16-18km / h depending on the mileage of about 10-30km rider weight and road conditions and ambient temperature may be the largest climbing angle of 40 degrees when the battery power is 135-174 watts power lithium battery protection board imported chips while increasing the temperature control and protection for riding a temperature range of minus 10 degrees -40 degrees Savings temperature -70 degrees to 30 degrees below zero voltage requirements AC110V-240V charger charging time is approximately 60 minutes 45 minutes to charge to about 80% Appearance Weight Dimensions 380 * 160 * 470 * mm ground clearance 100-110mm pedal inflated tire tire type vehicle weighs about 11KG roll protection safeguards are around 45 degrees over 45 degrees, the motor will stop running protection is greater than the speed limit 12KM / H to open the front pedal gradually lifted, to prevent further acceleration, to protect the personal safety of the red low battery indicator begins to rise, opened the front pedal power information indicates a message alert lights for the remaining 25% to about 25% capacity, 2 lights for 50%, 75% three lights, four lights at 100% when the battery is almost exhausted all the lights, the buzzer beeps continuously a power indicator light power is less than 25%, the proposed supplementary charge audible beep Continuous audible beep sound when low voltage protection blew roll protection sounding stereo Bluetooth audio playback devices support all Bluetooth phones Bright LED lighting device matching lighting accessories attached with charger, manual, certificate volume packaging size 45 * 24.5 * 55CM year factory warranty service products to protect the vehicle battery and supplies, in addition to foreign manufacturers warranty for six months to three months battery warranty tires tire manufacturers are not covered under warranty supplies caused by man-made damage