Electric City Bike for Adults -- ZIMONDA ZMD104 electric city bike 28” is powered by a 500W brushless motor made by BAFANG, great for city road and long distance cycling, allowing you to have a good riding experience. The dual disc brakes make the braking more stable and efficient. Shimano 7-speed transmission to adjust according to the terrain and environment. Recommended height: 61-78.7in. UL certified Battery Cell for 48V 10.4Ah...