When making an emergency stop while turning, applying both brakes is crucial for maintaining control of the motorcycle. This technique helps distribute the stopping force evenly between the front and rear wheels, allowing for a more stable and effective stop. When turning, relying solely on the rear brake can lead to skidding, as the motorcycle's weight shifts and can cause the rear wheel to lose traction.
Using both brakes together also helps to prevent the motorcycle from tipping over, which can happen if one brake is applied too harshly or unevenly. Additionally, applying the front brake gradually can help avoid sudden stops that could disrupt balance, but in the context of an emergency situation while in a turn, using both brakes is the most effective strategy for safely halting the motorcycle.