The isinwheel U8 Ultra Electric Bike for Adults features a 1500W Max Motor, Class 3, with a Max Speed of 28 MPH. It comes with professional Shimano 7 Speed, 26“*4 Fat Tires, and a 48V 18Ah Battery, offering a Maximum Range up to 105+Miles with 7-8 Hours Charging Time. Distinguishing features include Front Adjustable Suspension, a Removable Integrated Battery, and an Aluminum Integrated Body with a Step-Thru Frame, strong and moisture-proof, supporting a 330Lbs Max Load. It is Safety Certified with UL Certification, BMS 2.0 Battery Management, and 365-day Quality Assurance.