THIS IS A ONE AUTHENTIC VINTAGE SCHWINN NOS ITEM IN NEVER USED CONDITION, STILL IN ORIGINAL CASE / BOX. THIS ITEM IS A FIXED FREEWHEEL COG FOR FRONT FREEWHEELING SYSTEMS ONLY, THEY STILL HAVE THE OIL ON THEM FOR SAFETY FROM RUST. THIS ITEM IS STAMPED SHIMANO FF SYSTEM, THE LARGEST GEAR HAS 28 TEETH AND NEXT IS 24, 20, 17 AND THE SMALLEST GEAR OF 14. THIS ITEM IS 4-1/2" INCH WIDE, A VERY RARE SIZE NOT AS COMMON. DO YOU WANT THE BEST? HERE IS THE ITEM YOU NEED IN NEVER USED CONDITION, RARE TO COME BY AND READY TO GO. ON YOUR SHOW OR RIDER BIKE.