I will echo Mr. Nelson, do not push as hard in cold weather. Cold asphalt DOES effect grip level, not to mention the condition of the road surface. Your tires will grip, but not as well as they would in warmer temps. Asphalt, when warm, actually flexes just like your tires, although at a much smaller rate. Ever seen blacktop crack? It occurs when the tar is no longer bonding with the aggregate due to age, wear, extreme temperature changes, etc. An asphalt road laid in summer is more likely to crack as it contracts in the winter months. The percentages of tar and aggregates(rock,sand,shell if you live on the coast) are closely controlled, and depend on region, climate, and intended use of the roadway being built. Ever heard road racers complain about track conditions after several car events have been held.....all the braking zones are rippled(esp. F1 circuits). Tracks usually have a tackier mix with less aggregate to promote grip(flex) on the surface.
So, cold asphalt will not work with you, and is a much harder surface in winter months. If your tires slip on cold blacktop they are much less likely to regain grip. Good luck with the confidence thing
