Turn the key and ride off, though, and you’ll definitely know that you have entered a new world of Harley-Davidsons. The Sport pulls hard and smoothly from down low, getting noticeably stronger around 3500 rpm. It keeps pulling past 5000 rpm—where a stock Evos have long since begun wheezing—and keeps on going to the 5500-rpm redline and beyond. From the rumbles and shakes, you know you’re riding a Big Twin, but every moment on board tells you it’s not an Evo. The light-flywheeled Twin Cam has a revvy eagerness that is lacking in a stock Evo, and all its 88 cubic inches respond now when you twist the throttle open. At the same time, it really is mechanically quieter, with noticeably less clatter from its top end, all while running a little smoother than an Evo. Harley’s engineers deserve a cigar or six for this performance.