VINTAGE 70'S THUN CHROME COTTERED SINGLE 3/32 CHAINSET, 170mm ARMS 48 TOOTH. WITH ORIGINAL COTTER PINS. A COUPLE OF SMALL MARKS ON CHROME BUT OVERALL VERY GOOD. THANKS FOR LOOKING, PLEASE SEE MY OTHER ITEMS INCLUDING OTHER VINTAGE PARTS ETC TO LIST. POSTAGE DISCOUNT FOR MULTIPLE PURCHASES, LOCAL COLLECTION ALWAYS WELCOME