Britain’s most famous hard enduro race returned to the place where it all started – Nantmawr Quarry on the Welsh border – for the 2015 edition of The Tough One Hard Enduro Race. After a hectic on-foot start, the men went to battle in unforgiving conditions to test their wits and bikes against the elements. Watch as the world's best extreme enduro riders battle it out in some of Britain's most aggressive terrain!