Originally Posted by
volvostephen
Why not use Winter cycling shoes? I wear them with 2 pairs of socks and a waterproof cover. They generally keep my feet warm enough down to about 0 degrees Fahrenheit. I rode my first winter in boots and it was terrible - so glad I wear cycling shoes all year round...
I gave up on clipless for winter use. Primarily because when the roads are really bad I want to be able to get a foot down RIGHT NOW if need be. Aside from that salty roads are tough on the pedals, cleats, and screws.
Finally, winter cycling boots are expensive and from what I can tell really not designed for extreme cold. The people I know that have them end up shoving chemical warmers in them whenever it's under 10 degrees and they still have trouble keeping their feet warm.