The best way to stop quickly is to:

Using both brakes at the same time is considered the best method for stopping quickly on a motorcycle. When both the front and rear brakes are applied together, it allows for maximum stopping power. The front brake provides most of the stopping force because of the weight transfer to the front wheel during braking, while the rear brake helps to stabilize the motorcycle and prevent the rear wheel from sliding out.

This coordinated use of brakes ensures that the motorcycle maintains better control and stability, reducing the risk of skidding or losing balance. Riders benefit from increased braking efficiency and a shorter stopping distance, which is crucial in emergency situations or when quick stops are necessary.

Other techniques, such as using only one brake, do not provide the same level of control. Relying solely on the rear brake can lead to longer stopping distances and increased chances of losing traction, while using only the front brake may cause the motorcycle to tip forward or skid. Adjusting weight distribution can help improve braking performance temporarily but is not a primary method for stopping quickly. Thus, the safest and most effective approach is to utilize both brakes in tandem.