Equipment and Gear
Mountain bikes differ from other bikes primarily in that they incorporate features aimed at increasing durability and improving performance in rough terrain. Most modern mountain bikes have some kind of suspension, 26, 27.5 or 29 inch diameter tires, usually between 1.7 to 2.5 inches in width, and a wider, flat or upwardly-rising handlebar that allows a more upright riding position, giving the rider more control.
They have a smaller, reinforced frame, usually made of wide tubing. Tires usually have a pronounced tread, and are mounted on rims which are stronger than those used on most non-mountain bicycles. Compared to other bikes, mountain bikes also tend to more frequently use disc brakes. They also tend to have lower ratio gears to facilitate climbing steep hills and traversing obstacles.
Pedals vary from simple platform pedals, where the rider simply places the shoes on top of the pedals, to clipless, where the rider uses a specially equipped shoe with a sole that engages mechanically into the pedal.