THIS IS ONE TIRE,,,,RARE SIZE TO FIT SCHWINN BICYCLE WHEELS 20 X 1 3/4 S - 7 RIMS,,,,,, MINT NEW SOFT READY TO GO ON YOUR SCHWINN BIKE,,,,GREAT ITEMS FOR VINTAGE 1960S AND THE 70S AND NEWER BIKES WITH THE RARE SIZE S / 7 WHEELS,,,,SCHWINN HAS A RARE SIZE LIKE NO OTHERS IN SIZE 20 X 1 3/4 ,...,,, STANDARD SIZE 20 X 175 TIRES WILL NOT WORK ON OLDER SCHWINN BIKES SO YOU NEED THIS SIZE 20 X 1 3/4 TO FIT S-7,,,,,THEY ARE STAMPED 20 X 1 3/4 BUT NOT STAMPED SCHWINN OR WESTWIND BUT FIT THE SAME AND ARE BRAND NEW AND COST TONS LESS THEN VINTAGE SCHWINN TIRES,,,,,,THEY FIT MANY SCHWINN BIKES AND MANY ENGLISH BIKES AND SOME OTHER BRANDS OF BIKES AS WELL.