Table schema:
CREATE TABLE table_name_50 (rider VARCHAR, year VARCHAR, final_position___tour VARCHAR, final_position___vuelta VARCHAR)

Question: Who is the rider with less than 50 final position-tours and less than 11 final position-vuelta before 2008?
SQL: SELECT rider FROM table_name_50 WHERE final_position___tour < 50 AND final_position___vuelta < 11 AND year < 2008