Re: anybody know proper tire pressure on a 1929 6.5-20 tire?

Posted by TxGoat On 2024/4/19 9:29:37

Concerning tire pressure:
Owner's manual or shop manual pressures for your specific year and model and body style should apply to any brand tire of the same construction and size as original equipment. I tire pressure specs usually assume a full passenger load, with tire pressure checked cold. Later models with "balloon" tires on drop center rims often had very low tire pressure recommendations, such as 22 PSI for 1937 120 coupes. Adding 10% to that is probably a good idea. Earlier cars with "clincher' type tires and rims had higher pressures specified, usually 50 PSI or more, and it is not safe to reduce the recommended pressure by any significant amount with clincher type tires and rims.