Child Development: Parenting
Setting the Tire Air Pressure
Not all prams and strollers will need air to pump up the tires. If they do, the required air pressure will vary from model to model. The best way to find the tyre pressure is to see what is written on the tyre itself. The tyres are nearly always imprinted with the maximum pressure allowed, though on an old stroller it may have worn away.
You should also consider that in the hotter months the tyres will naturally expand due to the heat (particularly when the stroller is in a vehicle trunk), so it is advisable to put the minimum air pressure in during these months.
As a general guideline, a maximum of 20 Psi in your air tires will give a stable ride and not place them at risk at elevated temperatures in the rear of your car.