Vehicle, Mobility and Transportation Design Lvneng Umi Electric Two Wheeled Motorcycle by LVNENG Technology Co., Ltd. Umi is a multi-mode electric bicycle designed for Z-generation groups and developed based on the concept of green travel. It is designed on the basis of revivalism and integrated with modern elements, which cater to the aesthetic of young groups. It is equipped with an SCE wisdom and cool double-mode driving system. Users may switch the mode between sport and mileage. It is equipped with opposed-cylinder disc brakes, which can reduce the braking distance by 30-percent and ensure user security.