Seriously, outside of an airplane, I don’t think I’ve ever traveled at 207 miles per hour (or 333 kilometers per hour, if you’re metric).
Swiss cyclist François Gissy, however, just set a speed record on a rocket-propelled bicycle designed by his buddy Arnold Neracher.
How’s that for fast? Check out the video of the record-breaking attempt below, but be sure to turn down your sound. Nothing sounds as silly as a rocket bike.