From the wiki: “Oscar V. Babcock (1875-1957) started out as a bicycle racer, once part of the racing Harlem Wheelmen team, who became a professional stunt bicycle rider & biplane pilot. A newspaper reference has him participating in a 6-day bicycle race in New York City in 1898. Babcock started his bicycle loop act in 1904.
“Sometime about 1917 Babcock used the same bicycle/loop set-up and traversed the loop riding an Indian motorcycle. Babcock performed his ‘Death Trap Loop & Flume Act’ act all over the world. In 1921 he traveled to Havana, Cuba. In 1922, Babcock journeyed to Honolulu, Hawaii to open a new amusement park, continuing onward to Japan.”