A mountain bike 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.<br>Frame： Hiland Aluminum,front/rear wheel quick release<br>Fork：Lock-Out Suspension Fork<br>Crank：Prowheel 22*36T<br>Shifters：16 SPEEDS<br>Front Derailleur：Shimano TZ500 Tourney<br>Rear Derailleur：Shimano TZ-30<br>Cassette：13-32T<br>Tires：29*2.25<br>Brake type: Hydraulic Disc-Brakes