If this will be your first bike, get a walmart bike.
Go for hybrid(part mountain, part road).
Until you know your resolve through experience, stick to cheap stuff that you won't feel obligated to use regularly, or feel guilty if you dont use it, bad if you break it, or mad if it gets stolen.
The most I've paid for a bike is $150, and it hasn't let me down yet. Just keep it dry and oiled and you're good to go.
But yeah, don't go road bike unless your considering hardcore racing. Don't go mountain unless offroad is what your game is, because they're hard as fvck to peddle around the roads..The reason being is that the shocks takes alot of momentum away and reduces your speed, as well the thick/sturdy frame makes it alot heavier and harder to peddle.
If you're lookin for an exercise bike, go hybrid or mountain because they take more energy to peddle.
I had a hybrid for the longest time, worked great. It got stolen when I was at the gym awhile back. Then I got a mountain bike and it goes sooo slow on road unless you peddle like a motafoka. Then i got a car and haven't saddled up the bikes in over 6 months
