I will guess the year to be about 1960,the front tire on my Schwinn Phantom blew out. My dad and I went to the Schwinn dealer down the street to get a new tire. When the dealer told my dad how much the whitewall would cost, dad said, "We will take a blackwall then". the tire I got was a Zephyr blackwall with a plain ribbed tread.
The reason I recall all this is because I insisted on a whitewall to match the rear tire. After all it was a Phantom.
Pops would have none of that. As I recall he complained the blackwall was too much also, and told me I would buy the next tire with my own money. I dont know if these were Schwinn tires, but he did have a rack of them.
I have never seen another one that I recall. I think they only came in blackwall, and were the cheapest tire the dealer sold.
