1960 Harley-Davidson FL Duo Glide Motorcycle

Announced for the 1958 model year, the Duo-Glide was a major innovation in the history of Harley-Davidson, introducing proper rear suspension in the form of a swingarm with coil-over shocks and replaced the Hydra-Glide as the big touring bike of choice. Despite the lack of a rigid rear end, the sprung seat was retained. As usual, Harley continued to build two versions of the 74-cid Big Twin, either the low compression FL or the high compression FLH, the former gaining in reliability and ease of starting what it lost in outright performance. Much of the aesthetic appeal of the Duo-Glide can be credited to the Panhead motor, the mainstay of early post-war Harley-Davidson production. Termed "The Glide Ride" by Harley-Davidson, these chrome-laden bikes were the two-wheel equivalent of the Cadillac Eldorado and perfectly encapsulate the Fabulous Fifties today - many fans regard this as the most beautiful bike ever made.