A while ago I highlighted the very cool bicycle powered super computer, in that vein here is a bicycle powered welder.
I think this device would also make a nice bicycle powered lathe. Like I said when the zombies rise up, we will need these valiant bicycle hero’s to provide services for the future.
That is really cool.
I bet if you where to hook that flywheel up to a transmission you could get that bike to go pretty fast.
If you did it right you would even have the added gyro effect to keep you upright.
Add some batteries to store the energy when you don’t need it (downhill with pedaling).
Would weigh alot though.