Ultra endurance athlete Mark Beaumont and former pro road cyclist James Lowsley-Williams attempt to break the world record attempt to ride from Lands End to John O’Groats however this time they’ll swap their regular bikes for something a little bit different: a tandem! The duo will ride the length of the Britain non stop in an attempt to take home the coveted male tandem record. But having only been broken twice since the Sixties, will this be one challenge too far?