It is crucial that pneumatic tyres be checked every 15 days and while cold: the tyre must not have been used for at least two hours or have been driven less than 2 miles and at low speed. Allow for a readjustment if the inspection is done after having been used (while hot). In this case, please consult the manufacturer’s recommendations.
These recommendations apply to pneumatic tyres used on roads. On the circuit, and more generally in competition, there are separate recommendations to follow.