French cyclist Francois Gissy has broken the world speed record after attacking a rocket to his bike.
The fearless Gissy reached speeds of 163mph at an old runway in Munchhouse, Alsace.
The previous record of 150mph, set in 2002, was also rocket-assisted.
Gissy's contraption is hydrogen peroxide-powered and, as you can see in our video, packs quite a punch.
Just don't tell Lance Armstrong.Read More »from Rocket-powered bike breaks land-speed record