I bought the Kendas Klondikes, much cheaper than other offerings, studs are carbide/long lasting just like the expensive tires. They ride like rocks in the cold but it doesn't bother me. I was attending a brewery event on Saturday, the weather went from wet to a flash freeze with snow on top. My Klondikes took me home safe and sound. Here it doesn't stay cold all winter long like Chicago, I'm building a second set of wheels so I can swap if it's going to go below freezing.