1 is a Mountain bikes (MTBs), are designed specifically for off-road cycling.The feature which is added are Tensile steel frames wide tires with deep treads for better traction, and suspension systems to absorb shocks from rough terrain.Mechanical Disc brakes offer better stopping power, especially in wet conditions. The 7 speed indextype wheel rolls over obstacles more easily.Cycling purchase was good,delivery was good, everything was so perfect that it made my day.