It is always at the manufaturer discretion on what will be warranteed. You say you like the pedals because you have had good luck before with them (I am sure others have as well). They are cheaply make SPD copies. I do not sell them at my shop because of how cheaply made they are. I would rather sell someone a $30 pair of Shimano pedals then a Wellgo SPD style pedal. In my experience they will not work as nice as Shimano pedals. Look up the price difference of those pedals and see how much difference it was between buying the pedals either local or mail order in America.