On crowned roads, what changes occur compared to flat roads?

On crowned roads, what changes occur compared to flat roads?

• A. The tires wear more quickly.
• B. The road becomes smoother at the center.
• C. Ground clearance is reduced and the lean angle is less.
• D. The shoulders are better designed for turning.

Answer: (C)

On crowned roads, the surface slopes sideways from the center toward the edges, so riding through a turn changes how gravity and the bike’s geometry interact. That sideways slope means gravity helps push the bike toward the lower edge, so you don’t have to lean as far to follow the same curve—the lean angle needed is reduced. At the same time, because you’re tilted toward the lower edge, parts of the bike sit closer to the road, which lowers ground clearance in the turn. This combination is why the effect of crown is a smaller lean angle and reduced clearance, rather than changes like smoother centers or different shoulder design for turning.

On crowned roads, the surface slopes sideways from the center toward the edges, so riding through a turn changes how gravity and the bike’s geometry interact. That sideways slope means gravity helps push the bike toward the lower edge, so you don’t have to lean as far to follow the same curve—the lean angle needed is reduced. At the same time, because you’re tilted toward the lower edge, parts of the bike sit closer to the road, which lowers ground clearance in the turn. This combination is why the effect of crown is a smaller lean angle and reduced clearance, rather than changes like smoother centers or different shoulder design for turning.