How Do Gears on a Mountain Bike Work? A Beginner’s Guide
A mountain bike typically has multiple gears that work by changing the size of the chain rings on the front and the sprockets on the rear wheel. Changing gears allows the rider to adjust the amount of resistance or force needed to pedal the bike up or down a hill. A small chain ring with a larger sprocket creates an easier gear for climbing, while a large chain ring with a smaller sprocket creates a higher gear suitable for downhill riding or flat terrain.