I bought a bikesdirect bike and it came in the mail, eveything nice and new and the seat already installed onto the seatpost, but there's one really annoying problem:
I can't seem to loosen the "laprade" bolt that clamps down the seat rails...won't budge, even broke my multitool.

Any ideas? I tried leaving it out in the cold overnight and then heatshocking it with boiling water, but no beans. Unfortunately I don't have a longer M6 hex wrench, but I need to adjust the damn seat!