FLSTN stands for Softail Deluxe, which is an incredibly popular model of Harley-Davidson motorcycle. It is a bike known for its classic styling, timeless design, powerful engine, and comfortable riding position. The letters in FLSTN are found in the Harley-Davidson naming convention with each letter carrying its own significance. "F" represents the Big Twin engine, "L" denotes the Big Twin Longitudinal Engine configuration, "S" stands for the Softail chassis, "T" signifies the Twin Shock Rear Suspension, and "N" represents the specific model variant within the Softail Deluxe lineup. Properly understanding these letters will provide valuable insights into the key features and characteristics of the Harley-Davidson FLSTN. This will allow the bikers and Harley enthusiasts to appreciate the heritage and engineering behind this iconic motorcycle.