If It's said Our City Ebike is designed and produced for Adults ,then our this type 20 Inch Electric Bike is designed not only for Adults but also for Students and Children . The whole Ebike adopt 20 inch ebike kit ,Single speed 16T cassette ,SAMOX 44T,forged al-alloy 170mm length crankarm KMC S1,1-speed chain,the motor of this ebike is AIKEMA 85SX-RV-26 rear hub motor ,250,45N.m,Battery is EJOYSPORT Power inside battery pack,270Wh(36V 7.5Ah) li-ion cells . 5 riding assist modes,walk assist ,1.9''LCD display ,Back light Integrated button(i,+,-) ,Bike frame is also 6061 Aluminum Alloy Frame with 3 layers of high temperature paint spraying ,dynamic and texture are excellent . Here enclosed photos for you as follow : You can choose the color you like from our stock 3 colors in warehouse now , besides ,we also support OEM&ODM ,You also can change the colors as you like .