THIS IS A  SCHWINN SCRAMBLER BX TIRE DATE CODE  IS UU 9 7 1  IT  CAME OFF A 1977 SCHWINN STINGRAY SCRAMBLER  IT SAYS  SCHWINN SCRAMBLER BX MADE IN USA 20 X 2.125 USE WITH S-2 SCHWINN TUBULAR RIM AND 20 X 1 3/4 INNER TUBE IS FREE HAS QUITE A BIT OF CRACKING ONCE ON BIKE AND AIRED UP NOT REAL NOTICEABLE  BUT SELLING AS DISPLAY TIRE DUE TO THIS HAS NICE TREAD ON  IT  HAS  FREE INNER TUBE HELD AIR WHEN REMOVED!! SEE ALL PICTURES!! THANKS FOR LOOKING ANY QUESTIONS PLEASE ASK!! (550brightonmiscramblerhanggarage)