The 1984 USA models came in yellow and black (Kenny Roberts Special) and a metallic red-white and blue model with different graphics and no Kenny Roberts signature on the upper cowl. In 1985, the red-white-and blue versions had identical graphics to the yellow and black "bumble bee" Kenny Roberts version, complete with signature, but with a red frame. Leftover models with revised graphics that somewhat resembled the 1983 UK versions were also produced. These were sold as the RZ350NC2 in California only from late 1985–6 with gold rims and a Kenny Roberts signature. The estimated RZ350 production for the USA is approximately 20,000 motorcycles.