Howdy, Sopfu!
You're obligating yourself to having an intent to buy when the Empulse is within a certain number of days before delivery What does that mean? That means that, come whatever day Brammo sends you an email saying, "it's time, do you want your Empulse?" you'll respond one of two ways:
a. Yes! Here's my $x for the deposit, or
b. Not really, circumstances have changed, can't afford it, they have hydrogen bikes now, etc.
So, by preordering today, you're saying, "I really would like to have one of these, so put me on the waiting list."
Clear as mud? Okay, what you really want to know is, "If I pre-order, and then decide I don't (or can't) buy one, what happens?" And the answer to that is, "nothing."
You can find information on cold and hot weather stuff in various sections of the forum (Hey Phantom... can you find that for him? I gotta feed my kid). We should put it in the FAQ. Maybe we already have.
Welcome, Again!