It's the world's oldest, toughest cycling record: set by Tommy Godwin in 1939, the greatest distance covered by a cyclist in a year still stands at 120,805km/75,065 miles.
But all that could be about to change. Bruce Berkeley, a New Zealand-born bike mechanic based in southwest London, is one of a few current challengers taking on the record. Every day of 2016, he will need to cycle just shy of 330km – which will see him cover 121,000km in total. And he'll be recording every pedal stroke on Strava (you can follow him here).
In this video, Bruce takes us through the logistics and the kit that will make the attempt possible, and he answers the biggest question: why would someone put themselves through such an ordeal in the first place?
Bruce will be blogging exclusively for BikeRadar throughout his record attempt, so stay tuned for more.