It is not uncommon to find new vehicles with tire date codes already past a year before they roll off the sales floor. One bike I purchased had two year old tires on it before it went out the door. Case in point, when I finally did change those Avon's out they were eight years old and the rear tire rubber was getting so hard that when downshifting and braking for a turn or stop the tire would skid a bit. That was my queue for a new set of Dunlop's. I do not advocate keeping your tires on that long but it does depend on the bike size, speeds you ride it and amount of miles you ride it yearly. Large companies buy thousands of tires warehousing them for production line use. As long as is stored properly without being exposed to sunlight it will be OK. Motorcycle tire compounds start to change once they are exposed to the elements and use and the rubber compounds start to get harder (which a bad thing for two-wheelers). IMHO one year is way to soon to part with a set. If you have the resources to buy new sets every year because it makes you feel safer then do it, but in reality riders shouldn't start to worry unless the tire is at least 5-6 years old or has high mileage or some kind of noticeable defect (cracks, splits, bulges, bolts, etc). If your bike is your main trnspo then yes you probably are getting a new set yearly. Also never buy used motorcycle tires unless you are dead broke and there is no other options to get from A to B. For those that don't know where to look for your date code on your tires just look for an oval on the sidewall with four numbers in it, first two are the week and the second two are the year. TQ, I do respect your personal position on tire replacement and believe that as riders we have to adhere to our own set of rules that make us feel safer and in control every time we lift our leg over our saddle.