6.1 Braking Techniques and Emergency Stopping
Key Takeaways
- The front brake provides approximately 70% of total stopping force, while the rear brake provides 30%.
- Both brakes should be used simultaneously for every normal and emergency stop.
- Apply progressive brake pressure to avoid wheel lockup; utilize threshold braking for maximum stopping power.
- In an emergency quick stop, keep the motorcycle upright, apply maximum controlled pressure to both brakes, and pull in the clutch.
- If a wheel skids, release the brake slightly if locked, then reapply smoothly while keeping the motorcycle straight.
Braking Fundamentals
Effective braking is arguably the most critical skill a motorcyclist can develop. Because you are on two wheels, braking requires a combination of balance, coordination, and an understanding of physics. When a motorcycle decelerates, weight shifts forward. This weight transfer pushes the front tire into the pavement, increasing its grip, while simultaneously lifting weight off the rear tire, decreasing its grip. Understanding this dynamic is crucial for maximizing stopping power without losing control.
Front Brake vs. Rear Brake
The front brake is your primary source of stopping power. Due to the forward weight transfer during deceleration, the front brake provides approximately 70% of your total stopping force, while the rear brake provides the remaining 30%.
Many new riders are hesitant to use the front brake out of fear of going over the handlebars, but avoiding it severely compromises your ability to stop quickly. Conversely, relying solely on the rear brake drastically increases stopping distance and the likelihood of a rear-wheel skid.
For optimal stopping performance, you must use both brakes simultaneously for every normal and emergency stop. This habit ensures that your reflexes will automatically apply both brakes correctly when an unexpected hazard appears.
Braking Comparison Table
| Feature | Front Brake | Rear Brake |
|---|---|---|
| Stopping Power | ~70% of total stopping force | ~30% of total stopping force |
| Control | Hand lever on the right side | Foot pedal on the right side |
| Weight Transfer | Weight shifts onto the tire, increasing traction | Weight shifts off the tire, reducing traction |
| Lockup Risk | Severe consequences; can lead to immediate crash | Less severe but compromises stability |
Progressive Brake Pressure
When applying the brakes, avoid "grabbing" the front brake lever or "stomping" on the rear brake pedal. Sudden, forceful application can easily break traction and lock the wheel. Instead, apply progressive brake pressure.
Start by squeezing the front brake lever and pressing the rear brake pedal smoothly. As the weight of the motorcycle shifts forward and the front tire's contact patch expands, you can squeeze the front lever progressively harder. This gradual increase in pressure allows the suspension to compress and the tire to grip the road effectively.
Threshold Braking
For maximum deceleration, riders use a technique known as threshold braking. Threshold braking means applying the brakes to the maximum extent possible just before the wheels lock up. It requires a keen sense of the motorcycle's feedback. If you feel the tire beginning to slip or hear a chirping sound, you have reached the limit of traction and should slightly reduce brake pressure. Mastering threshold braking takes practice in a safe, controlled environment, but it is the most effective way to stop a motorcycle in the shortest possible distance.
Emergency Quick Stop Technique
In the real world, you will occasionally need to stop as quickly as possible to avoid a collision. The emergency quick stop technique builds upon threshold braking principles.
When an emergency stop is required:
- Keep the motorcycle upright: Maximum braking traction is only available when the motorcycle is perfectly upright and traveling in a straight line. If you are leaning in a curve, try to straighten the motorcycle before applying maximum braking force.
- Apply maximum controlled pressure: Smoothly and rapidly apply maximum pressure to both the front and rear brakes. Remember the progressive pressure rule—do not grab or stomp, but squeeze and press firmly.
- Pull in the clutch: Simultaneously pull in the clutch lever to disengage the engine power. This prevents the engine from fighting your braking efforts and ensures the motorcycle does not stall when you come to a complete stop.
- Keep your head up and eyes forward: Look straight ahead at your escape path, not down at the ground or directly at the obstacle. Target fixation can cause you to steer into the very hazard you are trying to avoid.
Recovering from Skids
Despite your best efforts, you may occasionally lock a wheel during heavy braking. Knowing how to recover from a skid is vital.
Front Wheel Skid
A front wheel skid is extremely dangerous. If the front wheel locks, you will lose steering control, and the motorcycle can fall over very quickly. If you lock the front wheel, immediately release the front brake lever to allow the wheel to start rolling again, then reapply the brake smoothly with slightly less pressure.
Rear Wheel Skid
Because weight transfers off the rear tire during hard braking, the rear wheel is much easier to lock. If the rear wheel locks on a straight path, you can release the brake slightly to regain traction, then reapply it smoothly. However, if the rear wheel locks and the rear end of the motorcycle begins to step out sideways, releasing the rear brake suddenly can cause a violent "high-side" crash as the tire suddenly regains traction and snaps the motorcycle upright. In all skid situations, the most critical rule is to keep the motorcycle pointed straight and look where you want to go.
Practice these techniques in an empty parking lot to build muscle memory. Start at low speeds and gradually increase your speed as you become more comfortable with threshold braking and emergency stops. Remember that road conditions, tire wear, and weather significantly affect braking distances. Wet or gravel-covered roads drastically reduce traction, requiring earlier and gentler brake application. Always maintain a safe following distance to give yourself adequate time to react and apply these braking techniques effectively. By mastering both front and rear brake coordination, progressive pressure, and skid recovery, you establish a critical foundation for lifelong motorcycle safety.
How much of a motorcycle's total stopping power is provided by the front brake?
What is the recommended technique for achieving maximum deceleration in an emergency?
If your front wheel locks up and begins to skid during heavy braking, what should you do?
What does the term "threshold braking" refer to?