Dry asphalt but ruined
In the presence of dry asphalt but ruined or badly damaged it is best to proceed with the utmost caution, and a pressure of 9 bar to 10 bar and the front wheel to the rear wheel. In the presence of asphalt is very spoiled better fall further pressure even to a 8 bar for the front and rear wheel.
Asphalt wet and ruined
In the presence of cold temperatures and winter, with a lot of moisture in the ground and ruined asphalt is preferable not overcome the pressure of 8 bar, rising above this value only in the presence of races which are closed to traffic and well you know the route and its pitfalls.