【Powerful Riding Performance】: The VARUN electric mountain bike is equipped with a 350W (peak 500W) brushless motor and a top speed of 20MPH, providing plenty of power for commuting. 【Removable Large Battery】: The VARUN electric mountain bike is equipped with a 36V 7.8AH lithium-ion battery, which can travel up to 30 miles in assisted mode, solving your commuting or playing problems and reducing fuel costs.