12-year-old wheelchair motorcross athlete becomes first UK male to land a BACKFLIP - video Dailymotion
Aaron "Wheelz" Fotheringham: Extreme Wheelchair Athlete - Guinness World Records | Gravity-defying wheelchair stunts with fearless X Games champion Aaron Fotheringham AKA "Wheelz" (USA) | By Guinness World Records | Facebook
Lily Rice: Wheelchair backflips and world championships
WCMX (sport) - Wikipedia
aaron-wheelz-fotheringham-1200 - Briometrix
Wheelchair Freestyle - Wheelz - Gnarly! - YouTube
HXC BMX Wheelchair
HXC BMX Wheelchair
PandoList: Building A Wheelchair BMX-Style - YouTube