Klaus Ulvestad (left) greets John Calvert, of Bowling Green, as Ulvestad and his friend Tormod Amlien (back) prepare to drive their 1937 Nimbus motorcycles to Memphis, Tenn., on Thursday. Over the last 11 months, Ulvestad and Amlien, of Norway, have completed about half of their world tour and have traveled more than 18,000 miles. The duo have been chronicling their adventures on their Web site, www.kccd.no, and receive help, donations and places to stay through friends and connections within the motorcycle community. They will be heading to Los Angeles and then to South America.