2017 HARLEY Forty-Eight SPORTSTER- 397 MILES, motorcycle comes at you with more low-slung Dark Custom™ attitude than ever, from its fat front end THE CHOPPER GALLERY DOT COM The first time the world saw this iconic 2.1-gallon gas tank was in 1948. But the world has never seen it sitting atop anything quite like this. The Forty-Eight®. Designed with its signature bulldog stance and the powerful 1200cc Evolution® engine. Large 49mm front forks, an adjustable rear suspension, cast aluminum wheels with floating rotors .