I've done it before on bikes with coaster/drum brakes and on the rear wheel of a fixed gear, they do actually give you a bit more traction in snow. You can put

I've done it before on bikes with coaster/drum brakes and on the rear wheel of a fixed gear, they do actually give you a bit more traction in snow. You can put the heads on the tread side for studdedness but then they break right the hell off the second you hit clean pavement. You can also put the heads on the rim side for a plain paddlewheel effect. They still like to break off easy, especially with cheaper zipties. Overall it's not worth it at all, since they don't last and don't help on ice where it would actually matter. Even true carbide-studded tires from Nokia or Schwalbe aren't really worth it unless you live somewhere with ice on the ground from freeze-thaw cycles for months out of the year. If it's just slush, relatively narrow normal tires will cut through to the pavement just fine. If it's snow, larger volume tires at lower pressures helps more than anything, and knobs are relatively pointless (much less studs) — you just want to float on top of it like sand.