What is a Bike Fit?

If you plan to go for long rides on your bike, I can't stress how essential it is to get your Bike Fitted.
If you're thinking about riding anything more than 10 miles regularly (a 10 miler once a Quarter does not count), I'd highly recommend getting your bike fit to the position of your body on the bike.

Two reasons why you'd want to get a bike fit:

1. The first few miles on a bike are fun, but once you start longer rides you'll start feeling every muscle in your body
Some of the areas that could ache on your first few rides are:
a. Legs (wow, who would have thought!)
b. Lower Back
c. Shoulder blades
d. Upper back
e. Neck
f. Your Posterior

2. Performance: A good fitting will help you get the most out of the energy you spend on the bike.
This will be super important towards the end of your long rides or for that matter on any uphill ride!

What a bike fit essential entails is : Customizing the height, settings and angles on the bike to suit your body style to ensure minimum discomfort and better performance.

I was about to write a long post on bike fit, but have found this article that describes the process very well.
I'd recommend you read this Bike Fit article if you're interested in learning more about fitting.