PRAGUE (AFP) Former Czech cyclo-cross world champion Radomir Simunek died Tuesday after a long illness at the age of 48, the CTK news agency said, quoting his wife. Simunek became the junior world champion in 1980 and amateur world champion in 1983 and 1984, before winning the professional title in 1991. He was the only cyclist ever to win titles in all three categories. In 1992, he caused a car accident in which three people were killed, and served four months in prison before being released on a presidential pardon. After ending his career aged 40, Simunek coached his son Radomir jr., now racing for Belgiums BKCP-Powerplus team, who finished eighth at this years world championships.