Gear Inches Meaning in Cycling

Gear inches is a measurement used to describe the distance a bike travels with one full pedal stroke. It is a way to compare different gear combinations across various wheel sizes. A higher gear inch number means the bike is harder to pedal but goes faster (like a high gear). A lower number means the bike is easier to pedal, which is perfect for climbing steep hills. You calculate it by multiplying the wheel diameter by the ratio of the front gear to the rear gear. This metric helps riders choose the right equipment for specific types of terrain. For example, a track racer chooses a setup of 90 gear inches to ensure they have enough top-end speed for a sprint. This precise calculation ensures their bike is perfectly tuned for the race. It is the math behind your pedaling effort.