What is the proper air pressure for 4.5-4.75 x 21 tires, for my 1925 Model F Star? I was raised on fat tubeless tires so I don’t have any idea what the tire pressure should be for skinny tubed tires.
Thanks Chuck

Do You own a car built by Durant? yes

Chuck
Generally you will have the recommended pressure stamped on the rubber. Mine are recommended to be 32 lbs . Check the side walls of your tires .
Ken

Do You own a car built by Durant? 1930 Durant Model614 deluxe rumble seat coupe

Thanks for the help . I really appreciate it.
Chuck

Chuck:
with these tires you want to make sure you add a few extra pounds in the winter to the tire do not deflate unless you jack the car up for the winter.
Jan

Do You own a car built by Durant? 1924 Star Coupe