I have tried for months to get low temp information out of Pirelli. Please post your temps and pressures and results. I just had a front tire slide at 60 mph on cold slightly damp surface at 60 degrees. I am not surprised that no one has responded to your post. Most say use a street tire. IMHO that tells me no one is pushing tires in the cold and Pirelli just does not want to commit to any statements regarding DOT tires. Look at Metzler 77 race tire. Some data is out there on the 77 but only vague info on Pirelli track tires. I am in the same boat: HELP!