I know the question wasn't asked of me, but take a peek at this site. https://www.peterwhitecycles.com/studdedtires.asp It's got a fairly decent amount of information about studded tires.

I've been using the 700c Nokian Hakkapeliitta for two seasons and really like them. The only time I wish I were riding something much wider is when I'm dealing with plowed road slush that has frozen over and have a very uneven/rocky kind of surface. Fortunately, I'm usually able to avoid this.

I liked the Schwalbe Marathon Winters that I got last year. In fact, this year I bought a pair for my son who is commuting to college. We don't usually get a lot of snow so getting these studded tires, which are not snow tires, are great for us.

I got mine from PeterWhiteCycles.com.

Now I just need some ice to ride them on.

Edit: Oops, I see NOS88 recommended the same site. And he's right about the write up on tires for snow and ice.

No exposed skin at 30 degrees? REALLY? Oh come on.

Me at 17*F

Bike helmets are designed to vent in the hottest temps and work well in those conditions. I think the best type of cold weather gear is what skiers wear. Yesterday we had a nice storm with 1 1/2 feet of snow. I spent the day skiing into a brutal north wind causing wind chills of 0 F and was completely comfortable wearing a fleece lined wool hat and ski goggles with balaclava and ski gloves. Now that I've had cataract surgery and no longer wear glasses for cycling, driving or skiing, fogging is not a problem. Moving lower, a fur jock strap may be ideal, but for the very coldest temps I've hand sewn a strip of wind-block fleece in the crotch of a pair of bottoms. I've put platform pedals back on the bike and will wear as warm a boot as necessary. Cold weather cycling is not like regular cycling so dress up for it just as in hot temps we dress down.

Cat Crap does a pretty nice job of stopping fogging on your glasses.

Most of my winter riding is commuting to work, so I stayed home and zombied out on Christmas Day.

My desire is to commute 3 times a week during the winter, but I haven't convinced myself to do it when it's 15F in the AM. We'll get there, though. I'll have to check out the tires, but would they fit on a road bike? I hate my MTB these days.

You won't find studded tires smaller than a 700X30 I'm guessing TWL. Moat road bikes are a 700X25 maybe 28 MAX.