What Is a Dropper Post on a Mountain Bike and Why Do You Need One?
A dropper post on a mountain bike is a component that allows the rider to adjust the height of their saddle while riding. This means that a rider can lower their saddle for technical descents, then raise it for pedaling and climbing, all without stopping to manually adjust the saddle height. The dropper post is controlled by a lever on the handlebar, and can typically be adjusted to several predetermined heights.