>>186110You can make them or you can buy them and I'm studded up in those pictures (front tire, anyway, which is all you need to stay upright & I only had the one 700C tire at the time because they're expensive). They don't make much difference in deep snow, but they're a godsend on glazed hardpack or ice, especially for black ice on the road. Riding around on the lake ice is a lot of fun too.
I've made my own with sheet metal screws and old mountain bike tires, back when commercial tires were either really expensive (Nokian) or really crappy (anything else). But it's a tedious pain in the ass, and now that there are more affordable commercial tires on the market I don't bother.
>>186146For winter commuting I like fixies (old road bike conversions, not track frames) or singlespeeds, or 3-speeds if you need the gears, because there are no derailleurs to freeze up.
