NOS SHIMANO DURA ACE COG 17 T INNER DIAM. 50.2 mm - 3 SPLINE WEIGHT : 22 g PART # 124 1720 GOLD COLOR DATES BACK TO 1978 SOME MINOR SURFACE OXIDATION YOU WILL RECEIVE THE ITEM AS SEEN ON THE PICTURES MAIL ME FOR ANY QUESTION I COMBINE SHIPPING THANKS FOR VISITING MY STORE G819 |