1939 Firestone Twin-Flex – Restored Posted on July 10, 2008 by rjs5700 and viewed 6753 times Posted in Pre-War Balloon Tire Bicycles Tagged Firestone, Huffman Manufacturing Company, Twin-Flex permalink Restored Huffman Firestone Twin Flex Entry Submitted by John Simpson Vintage bicycles and parts for sale on eBay! Similar bikes you might like: 1938 Spring / Summer Firestone Catalog Firestone’s 1938 Spring and Summer catalog once again shows Huffman... 1938 Firestone Twin-Flex This is the Firestone version of the Twin-Flex Cushioned bicycle... 1939 Firestone Twin-Flex The Bike of the Month this month belongs to Jerry... 1939 Firestone Twin-Flex – All Original The bike of the month for July, 2005 is Marc... 1940 Huffman Twin-Flex 1940 was the last year for the Twin-Flex design by...