Most Diamondbacks are considered to be mid-type bicycles,[1] with a high-end prototype in development as of 2011.Beginning in 1990, Western States Imports started selling its mountain bikes and road bicycles under the Diamondback name as well.Between 2013 and 2016, Diamondback developed a new trail bike platform called the Release.[6] Using input from bicycle suspension expert Luther Beal and Diamondback team riders (notably Eric Porter), Diamondback developed its first ever patent-pending suspension called Level Link.[6] A number of different models and sizes are offered by the brand, which include the following: Diamond Back were pioneers of BMX bikes in the early BMX years, a period that covered the late 1970s to the early/mid-1980s.