How often should tire pressures be checked?
The inflation pressure should be checked and adjusted at least once a month. Even the best tubes constantly lose pressure as, contrary to car tires, the pressure required in bicycle tires is much higher and wall thickness is much thinner. A pressure loss of 1 bar per month can be viewed as normal, but pressure loss will be much faster if high inflation pressures are used and much slower when low inflation pressures are preferred. When using latex tubes, it is best to check and adjust inflation pressures before every ride. Use a pressure gauge to monitor inflation pressure. The widespread thumb-test method is very inaccurate as all tires will feel identically hard from a pressure of 2 bar up.