Hi.
Since my bike is out of commission till at least next friday. I decided to stop by my universities sports club to train on one of those stationary bikes. Anyway when I'm pedaling on those things my legs just don't hurt as much as when I'm on my bike. After an hour of constant pedaling at descent RPM and resistance I can defently can feel my legs getting tired, but my muscles just don't hurt as bad as when I'm on my bike. I know my technique is far from perfect, but can it be this bad when I'm on my bike?

It may be a fit problem with your bike, but it's hard to believe the stationary bike fits better.

It could be just the fact that it iseems more comfy because most staionaries have you sitting more upright. It may seem more comfy, but technically not a position which will allow for more power production to the wheels.

You need one of those spinscan machines.

Anything with a built-in cup holder and magazine stand isn't a real bike.

Seriously though, you're dealing with huge differences in fit, leverage, resistance, and realism.

What would cycling be without burning legs?

if you took the bike handling and balance out of any bike i would think it would be more stable and comfortable feeling initially. it would be interesting to see if it is still this comfortable after many more rides. Add in the bearing down to cut wind resistance and the nuances of the up/down road...
That is why the power transfer doesn't complete translate over to the road.