Subscribe | UPI Odd Newsletter Subscribe Nov. 14 (UPI) -- A pair of British doctors broke a Guinness World Record by riding over 18,000 miles across the world on a tandem bicycle in 218 days, 22 hours. Guinness announced Thursday, designated as this year's Guinness World Records Day, that Lloyd Collier and Louis Snellgrove broke the previous record for fastest circumnavigation by tandem bicycle (male) by nine days. Advertisement The pair, who both work as doctors in Australia, set off from Adelaide, South Australia, Aug. 7, 2018, and finished their journey May 16, 2019. The men rode more than 18,000 miles across Australia, Asia, Europe and North America to raise money for Spinal Research and the Brain Foundation. "The entire journey was littered with mechanical failures and makeshift repairs," Collier said. "Cycling through India in particular, we became incredibly inventive in fixing mechanical components in non-conventional ways." Read More Girl sets Guinness record for blindfolded skating in India Man to attempt human flight suit record on Guinness World Record Day 335-foot-long carnitas taco breaks Guinness record in Mexico