The NYPD Harley-Davidson Motorcycle was introduced during 1957 and 1958. These motorcycles were silver instead of the traditional red color of the "Indian" Motorcycles. The Harley-Davidson Motorcycles delivered to the NYPD beginning in 1973 were blue and white, the same colors as Radio Cars delivered to the NYPD.
Added by Upcoming Robot on December 31, 2009