Harley-Davidson FXD Dyna Super Glide Prices and Values - J.D. Power. of real dealer pricing and shop special offers on new and used Motorcycles. Find the trade-in value or typical listing price of your Harley-Davidson Dyna at Kelley Blue Book. Harley-Davidson FXD Dyna Super Glide back forward ; Displacement: cc ( cubic inches) ; Bore × stroke: inch × 4 inch (undersquare - longstroke).