Home Listings 650NK 54 years ago 921 Save Compare Share 650NK 650NK Neatly packaged motor, 649cc, liquid-cooled, fuel-injected parallel-twin built in-house by CFMOTO with a 6-speed gearbox to extract the best out of that motor. The 650NK is enjoyable in both the city and out on the highway and it will give you a great first taste of big-bike thrills. Overview Show more Show less