We just purchased a 2017 Coachmen Freedom Express 192RBS. It has what I believe to be the original tires which I will replace shortly. The sidewall on the tire indicates that the recommended tire pressure is 30psi. I've had many trailers over the years and most if not all have had tire pressures recommended as 50 or 65 psi. Doe 30psi seem to be the correct setting. I have downloaded the Owner's Manual for this trailer but it obviously covers a multitude of trailers of different sizes and weights and is silent with respect to tire sizes or pressures. Thank you for any information.