2004 Harley-Davidson FXST - Softail Standard, 2004 Harley-Davidson® FXST/I Softail® Standard The Softail® Standard is classically and conservatively styled so owners can customize from mild to wild with Harley-Davidson® Genuine Parts & Accessories. Many have referred to the Softail® Standard as the perfect canvas on which customers can paint their most personalized bike. At its heart is the Twin Cam 88B engine, filled with smooth power. Underneath is the unique suspension, which provides the clean lines of a hardtail with the smooth ride of the Softail®. Classic laced wheels, a custom seat and wide handlebars on pull-back risers, give the Softail® Standard an authentic look that's just the starting point for many owners.