article_title name nationality
herbert rittberger
 herbert rittberger germany german
herbert rittberger

herbert rittberger -lrb- born may 16 , 1949 -rrb- was a former grand prix motorcycle road racer from germany .
his best years were in 1974 , when he finished second to henk van kessel in the 50cc world championship , and 1976 when he again finished second in the 50cc world championship , this time to angel nieto .
rittberger won four grand prix races during his career .
