NEW REPLACEMENT TIRE FOR AKAI PINCH ROLLER PART # 20494FITS THE FOLLOWING MODELS150, 1721, 1722, 4000 SERIESINSTRUCTIONS INCLUDEDLISTING IS FOR 1 PIECE OF THE TIREPLEASE NOTE – AKAI MADE 2 VERSIONS OF PINCH ROLLER PART NUMBER 20494BOTH VERSIONS HAD THE SAME OUTSIDE DIAMETER. BOTH FIT ON THE SAME SHAFT BUT THE DIAMETER OF THE ALUMINUM HUBS THAT THE TIRES WERE MOUNTED ON WERE DIFFERENT.THIS LISTING IS FOR THE 1.25″ DIAMETER ALUMINUM HUB.IF YOU HAVE THE VERSION WITH 1.16″ ALUMINUM HUB PLEASE SEE MY EBAY LISTING # 202031148807NEW FRESH STOCK USA FREE SHIPPING WITH TRACKINGPICKUP IS NOT AVAILABLE