not sure if this is the right forum, but is there generally a shelf life on tires, im running a dunlop 208 that im know has been sitting on the shelf for a couple of years (got it cheap). it feels a bit strange and seems to be losing traction. Its my first dunlop and Ive heard that they feel different but I just want to know is it possible for a tire to go off from too long sitting on the shelf?