Narrow tires just plain suck in snow and slush..period. I ride an SS MTB when there is snow and it handles just fine. Undisturbed snow is farily easy to ride in. But moslty whatever snow is on the roads usually gets packed or turns into to car snot really quick. Narrow high pressure tires break through the hard pack...you don't want that, and narrow tires are immpossible to navigate through car snot. You want something geared low with fat tires for snow.