1938 Firestone Twin-Flex Posted on August 29, 2001 by Dave Stromberger and viewed 10290 times Posted in Pre-War Balloon Tire Bicycles Tagged Firestone, Huffman Manufacturing Company, Twin-Flex permalink This is the Firestone version of the Twin-Flex Cushioned bicycle that was manufactured by Huffman. Special “3-rib” streamlined chainguard is a Firestone exclusive. Notice the “Firestone Fleetwood” badge. 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... 1937 Spring / Summer Firestone Catalog 1937 Spring and Summer catalog from Firestone showing Huffman and... 1936 Fall / Winter Firestone Catalog Fall and Winter catalog showing the 1936 bicycle offerings from... 1938 Huffman Built, Airflyte Twin-Flex – “Death Bike” This is the actual “Deathbike”. There have been several stories... 1939 Fall / Winter Firestone Catalog Firestone’s 1939 fall and winter catalog showing Huffman built Twin-Flex...