Sarah Storey relishing one-hour record attempt

Britain's Dame Sarah Storey reveals why she is relishing Saturday's hour world record attempt at London's Olympic Velodrome.

The 37-year-old 11-times Paralympic champion will be the first to challenge the record of 46.065km, set by Leontien Zijlaard-van Moorsel in October 2003.

Former cyclist Chris Boardman, who broke the men's record in 1996, says the challenge deserves to be "feared and respected".