<P> Harley - Davidson bought the "Sub Shock" cantilever - swingarm rear suspension design from Missouri engineer Bill Davis and developed it into its Softail series of motorcycles, introduced in 1984 with the FXST Softail . </P> <P> In response to possible motorcycle market loss due to the aging of baby - boomers, Harley - Davidson bought luxury motorhome manufacturer Holiday Rambler in 1986 . In 1996, the company sold Holiday Rambler to the Monaco Coach Corporation . </P> <P> The "Sturgis" model, boasting a dual belt - drive, was introduced initially in 1980 and was made for three years . This bike was then brought back as a commemorative model in 1991 . By 1990, with the introduction of the "Fat Boy", Harley once again became the sales leader in the heavyweight (over 750 cc3) market . At the time of the Fat Boy model introduction, a story rapidly spread that its silver paint job and other features were inspired by the B - 29; and Fat Boy was a combination of the names of the atomic bombs Fat Man and Little Boy . However, the Urban Legend Reference Pages lists this story as an urban legend . </P> <P> 1993 and 1994 saw the replacement of FXR models with the Dyna (FXD), which became the sole rubber mount FX Big Twin frame in 1994 . The FXR was revived briefly from 1999 to 2000 for special limited editions (FXR, FXR & FXR). </P>

Where did harley davidson get the name fatboy
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