Originally Posted by Rollfast

If the sidewalls are cracked stay off until you can find new ones. I know that it doesn't sound right but at least the Bells you can get a Walmart or other dept stores will do, especially is they have the knobby tread. After 50-60 years getting vintage or repros is expensive and if this is your daily driver you'll probably want good, fairly new tires.

I recommend getting tire liners and Slime (sealant) to prolong the life of your tubes. If you want the tires it came with I would go to ebay and look for sellers like Bicyclebones.