What is a common cause of motorcycle crashes during turns?

A common cause of motorcycle crashes during turns involves both speeding and incorrect lean angle. When a motorcyclist is turning, the dynamics of the motorcycle require careful balance and control of speed and angle. If a rider is traveling at a speed that is too high for the turn, it can lead to losing traction, hence resulting in a crash.

Additionally, having an incorrect lean angle can severely affect the motorcycle's ability to navigate the turn safely. Each turn requires a specific lean angle to counteract the gravitational forces acting on the motorcycle and maintain stability. If the rider does not lean correctly, perhaps by leaning too little or too much, it can lead to loss of control and increase the risk of a crash.

The combined effect of these two factors—speeding and incorrect lean angle—makes them the primary risks during turns. This highlights the importance of both managing speed appropriately and maintaining the correct lean angle for safe maneuvering. The other option regarding wet conditions does contribute to motorcycle crashes, but it is not as directly related to the mechanics of turning as speeding and improper lean angles are.