Mountain Bike Sizing
A mountain bike is something you need if you are planning to ride off road or the woods or zip through the desert on sandy or rocky trails. These kinds of bikes are designed for riding under conditions that are more rugged. Typically they have a stouter, more upright frame and offer higher clearance to get over rocks, logs and through ruts, etc. They can take a lot of stress and abuse and still allow the rider to comfortably negotiate rugged terrain and go over or through obstacles on the trail. Before purchasing a mountain bike, be sure you will be doing plenty of off-roading. If you are just going to around town or on hard-packed smooth, paved, flat trails, there are other bikes that will be able to serve you better and are more comfortable such as cruisers or hybrids. Most entry-level mountain bike frames use steel as material