Conrad Dube, who was stricken by polio at age two and wasn't able to walk until he was 12, continues his globetrotting by bicycle with a stop in China, the 67th country through which he's pedaled in an effort to prove that his will is stronger than his handicap. As of September, 1968, the 39-year-old Canadian had traveled 192,000 miles, wearing out 12 bicycles in his 17-year journey.