"factory take-offs". brand new tires, about half the price. I bought a set on ebay, had them shipped directly to my local repair shop. my auto tech is just down the street from me, literally. we're friendly, and I trust him wholeheartedly when it comes to repairing my vehicles. I picked his brain considerably before making the purchase. been driving on them since last fall. no problemos. don't know a thing about availability for various tire sizes, but there were plenty of Michelins in the size I needed. all said and done, cost me about $600 instead of $1100. just had them rotated a couple of days ago. wearing fine.