What technique should be used to apply the rear brake for quick stopping in a straight line?

Using light to lighter pressure on the rear brake is the recommended technique for quick stopping in a straight line. This approach allows the rider to maintain better control of the motorcycle while achieving maximum stopping power without risking a skid or loss of stability. Applying too much pressure suddenly can cause the rear wheel to lock up, which can lead to an unintentional slide or loss of control, particularly on slippery surfaces.

In contrast, heavy pressure could overwhelm the tire's grip and lead to a skid, while constant pressure might not provide the necessary deceleration needed for a quick stop. Slight pressure may not generate enough braking force, resulting in inadequate stopping distances. The key to effective rear braking is to apply just enough pressure to slow down swiftly while still keeping the motorcycle balanced and under control, which is why light to lighter pressure is considered the safest and most effective method for quick stops.