I'm seeking 26 in Old School slick tire such as on the OG stingrays for a Schwinn heavy duti project that I am about to embark upon. I have searched and searched online and all I come up with is modern rounded off slick tires. I'm looking for something much more squared off such as on the old Stingrays. 26 by wide is what I seek not fat but wide. Thanks in advance, Michael X