If you must, you can just get a set of new brakes, that will work. Did you get cantilever when you have v's? You should know what you're going to order before you order. IF you have v's and got v pads, then you could get a new set of calipers with brake pads, and once the stock ones wear out, or if theyre terrible, just throw em out and put the kool stops on. You have extra pieces then, which is almost always a good thing.