National and world bicycling champion Steve Johnson of Salt Lake will begin the defense of his titles Wednesday at the Age Graded Nationals.

Johnson won national time trial and criterium races a year ago and went on to claim the world championship in the road race. He will compete in the national road race competition Wednesday. Sunday he will take part in the criterium race. Time trials were held Sunday but he did not attend.Other Salt Lake racers competing are George Veasy and Mark Bates.