He was the F.I.M.250cc Motocross World Champion in 1984 and 1985 while riding for the KTM factory racing team. After his motocross career, Kinigadner began competing in off road races such as the Paris to Dakar rally. He also serves as a sporting director for KTM. After his younger brother and son were paralyzed in accidents, Kinigadner helped start the Wings for Life foundation, which is dedicated to finding a cure for spinal cord injuries. Heinz also has a stake in the KTM Sport-motorcycle Corporation. Being the first Austrian World Motocross Champion racing on the Austrian KTM made him a national hero in his home country.