Red Seal Motorcycle Technician Practice Exam

What does the term "lean angle" refer to when riding a motorcycle?

1. The angle of elevation of the motorcycle

2. The angle at which the motorcycle tilts in a corner

3. The angle of the handlebars

4. The angle of the tires on the road

The correct answer is: The angle at which the motorcycle tilts in a corner

The term "lean angle" refers to the angle at which the motorcycle tilts in a corner. When a motorcycle is leaning, it means the rider is shifting their weight to maintain balance while navigating a curve. The lean angle is crucial for effective cornering, as it determines how much traction and stability the motorcycle has during the turn. A greater lean angle generally allows for a tighter turn, but it also increases the risk of losing traction if the angle is too extreme or if road conditions are poor. In contrast, the angles of elevation of the motorcycle, the handlebars, or the tires on the road do not directly define "lean angle" in the context of motorcycle dynamics. The elevation angle would pertain more to the bike's overall orientation relative to the ground, while the angle of the handlebars and the tires relate to handling and contact with the road instead of the moment of leaning in a turn. Understanding lean angle is vital for safe and effective motorcycle riding, especially when executing sharp turns or high-speed cornering.