Just came across this post about a jet-powered mountain bike using an AMT miniature gas turbine jet engine. This mini rocket booster is designed for propelling remote control airplanes which explains the setting for this video (embedded at the bottom of this post). Cranked up, the engine sounds badass but it’s a letdown to see the guy puttering along slower than he could pedal. The mountain bike looks like a Specialized Stumpjumper and the rocket mount seems top-notch (though perhaps a little overdesigned for the amount of power the jet ultimately produces).
Notice how the rider mounts the bike by swinging his leg over the back of the bike, right through the jet wash. He probably felt a little hot air back there – but who even gets on a bike like that anyway? I guess he’s lucky he didn’t burn his boots or his pants. It also seems like the rider doesn’t actually get to control the jet – the guy with the remote appears to be working the throttle. Yikes!
We’re waiting for a more powerful version of the jet before we strap one of these onto our mountain bike. 
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I remember advertisements for bicycle rocket motors back in the 1970′s. Wasn’t fooled then, don’t think I’ll be fooled now.
Just get a crotch rocket…otherwise pedal!
Seriously…..what a joke! Just pedal or as Phil_Marsh stated, just freaking pedal. Seeing all these bicycles, and I mean pedaled bicycles, having motors on them is a real joke. People are getting sooooo lazy in this country. I can see the money spent on this being spent in a more productive manner. Jeez!
lighten up everyone! This was just a really cool and interesting experiment, fun to watch and probably really fun to do. I don’t think its the beginning of a trend towards people going out and buying jet motors for their mtn bikes and cruising the trails that way