This comfort seat was removed from a 1979 Schwinn Collegiate. I don't believe it is riight for that year. It appears to have been removed from a more recent Schwinn bike. The mounting hardware is for a 13/16" diameter shaft. It should fit many other cruiser and road style Schwinns. They are in fair to good used condition. They are for sale as is with no returns. No international sales. Thank you for looking.