Kawasaki’s updated middleweight naked bike is an amicable machine on which to get lost. The 649cc, DOHC, eight-valve parallel-twin remains, although fuel-injection and exhaust changes give a slight power boost below 7000 rpm. The frame and swingarm are both new, and share a design based on side-by-side steel tubes. The subframe also was redesigned to allow extra seat padding without increasing height. The saddle itself is narrower and the top of the fuel tank is taller to accentuate the bike’s brutish appearance. Slightly less racy steering geometry and softer, longer-stroke suspension are intended to enhance the rider-friendliness that has always been a key attribute of this model.