Think a Grand Tour is long? How about an around the world race? The Global Bicycle Race will roll out from London in February as racers will attempt to ride at least 18,000 miles in the shortest amount of time. Racers will follow the Guinness Book of World Records rules:
The cyclists are free to choose their own routes. Guinness rules, however, state that the winner travel at least 24,900 miles (the distance around the equator) of which 18,000 miles must be on a bicycle. The competitors need to pass two opposite points on the globe, such as Spain and New Zealand, and they need to generally travel in one direction.
The current record was set by Vin Cox in 2010 in 163 days, 6 hours, and 58 minutes. Not sure how one would even begin training for such a race but I’m guessing it’ll take more than a few Clif Bars and pasta dinners to make it through. You can read more about the race, rules, and follow along at the Global Bicycle Race.