Michelin Canada orders these tires in batches and only during the warm months. There were none available all winter and in March over 100 rears were available. Find a good tire shop or dealer to call the distributor to find a delivery date. The P4S will be a while before our size is available. The 2018 is still shipped with the PSS. Also check your fronts, they wear on the inside and in my case the fronts wore out before the rears. And get ready for sticker shock!