Hey! In my spare time I enjoy riding my mountain bike.
That sounds like fun! so you enjoy going on a bike designed for road cycling then?
Yes most definitely! It's exhilarating to do that.
I am sure it is.  I read that the bikes share similarities with other bikes but have added features to enhance the durability and performance in rough terrain
Ooh. That is interesting. I have to do some more research about the newer features.
Mountain bike
A mountain bike or mountain bicycle (abbreviated MTB) is a bicycle designed for off-road cycling. Mountain bikes share similarities with other bicycles, but incorporate features designed to enhance durability and performance in rough terrain. These typically include a front or full suspension, large knobby tires, more durable wheels, more powerful brakes, straight handlebars, and lower gear ratios for climbing steep grades.
Mountain bikes are generally specialized for use on mountain trails, single track, fire roads, and other unpaved surfaces,
Mountain biking
Mountain biking is a sport of riding bicycles off-road, often over rough terrain, using specially designed mountain bikes. Mountain bikes share similarities with other bikes but incorporate features designed to enhance durability and performance in rough terrain. Mountain biking can generally be broken down into multiple categories: cross country, trail riding, all mountain (also referred to as "Enduro"), downhill, freeride and dirt jumping. 
This sport requires endurance, core strength and balance, bike handling skills, and self-