Regardless of the legally prescribed liability for defects, Riese & Müller grants a five-year guarantee for breakage of the frame or rear swing arm. Furthermore, we grant you a voluntary warranty on the battery of two years: we guarantee that the battery will still have a capacity of 60 percent after two years or 500 full charge cycles (whichever occurs first). Every warranty promise refers to private customers making their initial purchase. You can find all information about the guarantee here.