Most of the single-digit riders for the 1971 season line up before a Grand National race. Riders shown include Tom Rockwood (9), Chuck Palmgren (8), Mert Lawwill (6), Don Castro (5), David Aldana (3), Jim Rice (2) and Gene Romereo (1). Numbers that year were given based on where you finished in the Grand National points the previous season. The only single-digit riders missing from this photo are Mark Brelsford, who was No. 7, and Dick Mann, who would have been No. 4.