I don't think they are Harleys - Kawasaki Z1000s maybe? These bikes are 1984 Harley FXRPs. 1984 was the first year as a police model and they were only offered to the CHP in 1984 with fairings, to all others with narrow windshields. From 1985-1994 they were offered in both versions to everyone. The model was discontinued in '94 or early '95 and not replaced until the Dyna Defender came out in 2001 which lasted until 2004.