Fork travel refers to the distance a bicycle's front suspension fork can compress when encountering bumps or obstacles. This measurement is crucial for determining how well a bike can absorb shocks and maintain control during rides. More fork travel generally means better performance on rough terrain, as it allows for greater absorption of impacts. In mountain biking, for example, a fork with longer travel, such as 120mm or 160mm, is often preferred for downhill trails, while shorter travel forks, like 80mm, are suitable for smoother paths. The right amount of fork travel enhances comfort and stability, improving the overall riding experience.