Haro introduced its first successful line of Freestyle BMX bikes in 1983. The Haro Sport and Master were the company's flagship bikes that sparked a revolution in bicycle design and imitation across the industry by other companies. In that year, its revenue greatly took off and it ignited a huge cult following. In 1984, the company added the FST to its product line-up for consumers with lower budgets. As a result of Haro's huge success, companies like Hutch, Diamond Back, GT, Schwinn, Redline, Dyno, CW and Skyway modeled their own frame versions after Haro's designs. During the 80s, GT became Haro's strongest competitor. However, because of Haro's huge profits from the Sport, GT's sales dwindled in comparison.