Since when? All the ones I saw are the ones made by cooper. They all have the same tread pattern, and most are studdud because they use shitty compound.Its the tread design. Also there are a billion different versions of the arctic claw made by a billion different companys.
Similar to the arctic claw? Looks like the general altimax arctic to me. The snowcontrol looks a bit like the arctic claw but looks like it wouldnt be as noisy. But you will never know until you run them.The Pirelli winter carving looks similar to the arcti claw. But is superior in every way to the cheaper tire. I have run them back to back. And still have both.