I don't remember the year,maybe someone remembers the add in Bicycling Magazine for 2 Wolber W20 tires and tubes for $14.95. They were supposed to fit the Rigida 13-19 rims. I got the whole set-up and thought how in the world will that little tire hold me up. They were cotton carcass, and I blew several out on rough roads. W20, Elan, and Schwinn Record were there about the same time. Dickey Greer West Monroe,La Dickey's Recreation Room