... .com, China (Mainland)Model Number: XYBrake(F/R): (F)disk/(B)drumColor: optionalController: 12 pipesBrake: (F)disk/(B)drumWheels: 16"tires: 3.5-10power: 800w ... and in warranty, the after-sale service must fulfill obligations.B: Where the warranty service items, please show service card and ...