Here in Boston, I ride a road bike as much as the road conditions let me. Wind chill is as much of a concern as ambient temps for me.

At those temps, I wear a pair of wind-tights over a pair of winter bib-tights. A wind-proof base-layer, long-sleeve winter-weight jersey and an e-vent jacket. Wind-proof liners inside lobster-mits, double socks and booties are a must, as are a decent balaclava and glasses (to keep your eyes from watering up in the wind).

You’d also be surprised how much a little saran wrap (or sandwich baggie) over the toes of your socks and make a difference when riding in road shoes in the winter.

The most important thing is keeping the extremities (and ears) warm. For everything else, you can just pedal harder to keep warm.

I commute about 10 miles each way. I prefer to pedal hard and get to my destination as quickly as possible as opposed to pedaling easy and arriving fresh. It also helps that I have a gym in my building. YMMV.

Here’s 19 deg: http://greaseragmpls.wordpress.com/2011/11/17/not-that-you-asked-but-this-is-what-im-wearing-today/

For 10 deg, just make sure you have something to cover your eyes, ears and face, and something windproof is nice. Warm shoes (vents= bad!) and windproof mittens are important. You could get by with heavier weight tights, booties and a wicking layer with a softshell.

Lots of tips at greaserag.org, too! Consider visiting us while you’re in town!

-Low
Grease Rag Ride & Wrench
greaserag.org

2 pairs of socks – 1 thin pair, one thicker
cycling sneakers (crank bros)
track pants
soccer shorts
undies or bike shorts
thin performance shirt, long sleeves
cotton long sleeved t-shirt
sweatshirt or sweater
cycling windbreaker (endura gridlock for me)
gloves
performance balaclava
scarf
ski goggles

and if i’m on a longer ride, I’ll probably end up stopping and taking off the sweater/sweatshirt layer after a couple of miles to keep from overheating.

Above 30F and I’ll skip a layer top and bottom

If it’s 10F and raining (oddly enough completely possible) I’ll catch a ride.

Keep your hands, feet and head warm and you can be out for hours. If you get a bit cold shift to a different gear and pedal harder.

I just put my snow tires on the Batavus:-)

Make sure you have great lights front and back!!! Sunrise is later and sunset earlier. (here it is 8:30 am and 3:45 pm now)

here is a video some people made

http://vimeo.com/8597651

Bike lanes are plowed first:-)

Flanned lined pants over bike shorts
Thin longsleeved baselayer
Warm-ish winter REI jacket (puffy-style)
Winter boots
Windstopper hat
ski mask
LG Lobster gloves
Ski goggles

I was TOASTY. A little too toasty.