Can Modern Technology Help an Amateur Beat a Pro?

5 live's OJ Borg reports on Mark Cavendish & Sir Bradley Wiggins' bid to race at the Rio Olympics, investigates cycle speedway with Britain's World Champion Vicky Brown, and puts pro rider Kristian House on a 1914 bike and races him up one of the hardest climbs in the Peak District to find out what difference 100 years of technology makes.