Mountain bikes typically have how many front chain rings?

• A. Three
• B. One
• C. Two
• D. Four

Answer: (A)

Front chain rings are the number of rings on the crankset at the front of the bike. Mountain bikes are commonly built with a triple crankset, meaning three chainrings. This setup provides a wide gear range so a rider can tackle steep climbs with a very low gear, while still having high gears for fast riding on flats or descents. Although some bikes use two front rings or even a single front ring for simplification or weight reasons, the traditional and most typical arrangement is three front chain rings.