Why must both brakes on a motorcycle always be in perfect working order?

On a motorcycle, both the front and rear brakes contribute to effective stopping. Having both brakes in perfect working order ensures you can achieve the shortest possible braking distance, which is critical for safety in emergencies. Additionally, if one brake fails, the other must be fully functional to allow you to slow down or stop safely, preventing accidents. The ability to park safely on a slope is not the primary reason for brake maintenance; parking relies more on other measures like the parking brake or using the motorcycle's stand. Therefore, maintaining both brakes is essential for safe and effective braking performance.