We have grown up seeing Paralympic wheelchair athlete David Weir on TV, leading marathons around the world and setting a true sporting example of perseverance in sport on so many levels.
Heading towards his 25th London Marathon and 7th Paralympic Games, our support for David took us to the wind tunnel with our friends Wattshop and Professor Greg Whyte OBE, exploring all things aerodynamics to give David the gains he needs coming into this important season. They may be marginal, but they quickly translate into substantial gains at his speed and distance. Watch this incredible athlete go through a day of testing.