2019 Harley-Davidson Softail Slim, The stripped-down, souped-up, post WWII era look of the bobber is running stronger than ever in the Softail Slim model. You get the classic look of spoked wheels, chopped mudguards and footboards. And a ride straight out of right now. It s 16 kilograms lighter, with greater lean angle, than Slim models from just a couple of years ago. And you get the power and soul-satisfying sound of the Milwaukee-Eight 107 V-Twin engine to take you into the future. Fast.