Gas Turbine Rocket

I really do want to ride something like that, I think I might finally meet a power to weight ratio I find “just right”
Your right there. It's the same engine we had in the OH-58C helicopter (designated the T63A720 engine). Puts out 420 SHP at a weight of around 150 lbs. He'll need that stretched fuel tank though as it loves to drink fuel.
 
Rocket in frame only. They removed its soul
 
Those reduction gears would have to really be working to get the back wheel to rotate at the correct speed.

It is nice to know that people are still doing things just because they can.