
Charity: Bicycle - Douglas Concha World Record Attempt
Hawai’i Bicycling League Member and Charity:Bicycle Founder, Douglas Concha is attempting to set the Guinness World Record for circumnavigating the world (18,000 miles / 28,970 km) on a single-gear bicycle.
This effort will raise funds and awareness for Médecins Sans Frontièrs/Doctors Without Borders.
Douglas is departing Honolulu, Hawai’i on June 1, 2023 and plans to return 9 months later.
Click here to read Douglas’ world record attempt action plan!
Updates:

Where in the World is Douglas – June Update
June 30, 2023
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Bicycling around the world on a single-speed! Follow along on Douglas’s Adventure!

Douglas Send Off – June 1, 2023
May 23, 2023
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Join the official send-off! by Douglas Concha on May 23 On June 1st, I will begin my Guinness World Record attempt to circumnavigate the world (18,000 miles/28,970 km) self-supported on


