Wrestlers on a roll This week's machines must be right at the top of Scrapheap's 'most bizarre' list – and the test proved fascinating too. With both machines working well at the end of tinkering time, it was likely that the team that proved best at riding a monowheel would triumph. Firstly, the three members of each team had to complete a straight relay race. In round two one team member from each team had to negotiate a series of tricky turns on a circuit of the go-kart track. The team with the quickest aggregate time booked a place in the semi-finals. Round one wasn't the quickest race Scrapheap has seen. The Tunnel Ratz' TC Geraint Owen posted the quickest individual time – perhaps not surprisingly, as he was the only one to have ridden a monowheel before the challenge was announced! At the end of the round the Tunnel Ratz had a 30-second lead. In round two the Ratz' Penfold (James Lackmaker) crossed the start line and promptly lost control, which seemed to dent his confidence, and he crawled around the course. The Hammerlocks selected Steve 'Psycho' Edwards to roll them to glory, and, living up to his name and throwing caution to the winds, he powered them to a comfortable victory.