IN THE 60's 70’s and 80’s IT WAS VERY POPULAR TO USE BLACK TREAD WITH WHITEWALL TYRES. THEY ARE 20 x 1.75 WHITEWALL (47 x 406). YOU ARE PURCHASING A PAIR OF TYRES (2 TYRES, NOT 1). YOU ARE BUYING A PAIR IE A FULL SET FOR ONE BIKE, TWO TYRES ( sorry to go one but so many people still ask am I buying one tyre or two ? ).
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