Braking does not only apply to stopping your motorcycle, it is also important for safe and skillful cornering. The first rule for safe cornering is to enter a turn at a safe speed. What exactly is a “safe” speed? It is a speed that allows you to negotiate the turn comfortably while applying gradual acceleration without the need for deceleration or mid-to-late corner braking. Steady acceleration keeps the bike stable and makes the bike corner predictably, so entry speed should allow for this steady drive through the curve.
The amount of brake pressure needed to slow the motorcycle is directly dependent on the approach speed and the point where you begin braking. Braking earlier means you can use less brake force and braking later requires more brake force.
Trail Braking Defined
Sometimes delaying your braking can be a useful tool. Trail braking is a technique that is done by continuing to brake beyond the turn-in point. You then gradually “trail” off the brakes as you lean until there is no brake pressure by the time you are at full lean. Trail braking is most useful for tighter turns with a relatively high approach speed and for downhill hairpins.
On the racetrack, trail braking is typically done using the front brake only, although trail braking can be done with either the front only, rear only or both brakes. It can be argued that engine braking is also trailbraking.
Trail braking is traditionally a technique used when racing to keep the competition at bay. But, it is also useful for street riders. Let’s see how.
*Contrary to what I say in this 2008 video, I have come to believe that trailbraking is very useful on the street to manage corner entry speeds. It is one of the skills we work on during on-street training.
1. Helps Refine Entry Speed
One advantage of trail braking is that it allows the rider to extend the time and distance used to establish entry speed. This can be a real advantage if a bit more braking is needed for a tightening turn or to avoid a mid-corner obstacle. By entering a turn with light brake pressure, you are less likely to upset the chassis if you need to slow a bit more. For minor speed adjustments, simply remain on the brakes a bit longer.
Staying on the brakes past turn-in allows more time and space to get your entry speed just right. On the other hand, if you release the brakes completely before leaning, you have committed to that entry speed. If you need to slow more, you’ll have to begin braking again, which can easily upset the chassis and stress the tires. To prevent front tire traction loss, you must avoid increasing brake force and lean angle at the same time.
For those of you who use the quick-turn method of initiating lean (an excellent thing to learn and use) understand that it isn’t often conducive to trail braking. Most times you will ease into the corner more when trail braking. To turn quickly, you will release the brakes quicker, immediately after turn-in.
2.It Helps the Bike Turn
Trailbraking puts more load onto the front tire for increased traction to handle countersteering inputs. It also steepens chassis geometry as the forks compress to help the bike change direction. It’s important to know that as you begin to release the brakes, you must also relax your arms to let the front wheel track freely through the turn. Follow with a smooth transition to the throttle for a predictable line toward your exit (see #8 below).
3. It Enhances Stability (when done right)
Trail braking is also used as a way to enhance stability and control. Trail braking helps minimize forward and rearward chassis pitch that occurs when applying and then releasing the brakes. When the front brake is applied the forks compress, and when the brakes are released they rebound and extend. The forks compress once again when the bike is leaned into the curve. When trail braking, the forks remain compressed as the bike is leaned and the “off-brake” rebound action is eliminated. This also steepens the front end geometry for easier turning. The suspension stays compressed as the bike leans and then rebounds gradually as the brakes are released and the throttle is rolled on.
4. It Can be Risky (when done wrong)
Trail braking is a technique that combines both cornering and braking forces, which means that you must use light brake pressure otherwise you can lose traction. This is why it is best to get most, if not all, of your braking done before the turn. Because trail braking can be risky it should be used judiciously and should be avoided when traction is limited. However, trail braking is an advanced technique that can be useful for all riders.
Learning how to trail brake starts with overcoming the anxiety that the tires will slide. To prevent “tucking” the front tire and lowsiding, you must use light front brake pressure and understand that increased lean angle requires decreased brake pressure. Once this fundamental level of trail braking is learned, then you can use the technique.
5. Help Salvage a Blown Corner… I Suppose
Remember that trailbraking is a planned technique to refine cornering control and should NOT be confused with salvaging a blown corner entry (that’s called screwing up a corner becasue you didn’t judge entry speed correctly). That said, we all make mistakes and knowing how to trailbrake can be used to fix a mistake. One of the most common reasons for crashes in corners is when a rider enters a turn too fast and lowsides or goes off the road. Most untrained riders panic and either stand the bike up and leave their lane or grab the brakes and lowside. If you are adept at trailbraking, then you can brake past the turn entry while still maintaining a relatively relaxed composure (depending how overspeed you are). To reiterate…trailbraking is not technically “braking to save a blown corner”.
6. You Must Get a Feel for it
To brake effectively you must develop a feel for how much brake power is possible without losing control. Brake feel is a learned skill that includes understanding the dynamics of load transfer on traction as well as developing a feel for how your motorcycle’s brakes respond to subtle inputs. This knowledge is necessary if you are to learn to use brake force to maximum advantage.
One way to help refine the trail braking technique is to use two fingers on the front brake. This allows the use of both the brake and the throttle, which is useful for transitioning smoothly between braking and acceleration. The advantage of two-finger braking is that it allows the two remaining digits to remain on the throttle grip (usually the ring and pinkie). This is useful when implementing advanced throttle/brake techniques such as brake and throttle overlapping or throttle blipping (to be covered in a future post).
7. Trailing off is as important as Trailing on
Getting the right brake pressure applied is critical when trail braking. Progressively squeezing the brake transfers weight gradually and avoids spikes in tire load. But, it’s also important to release the brakes progressively to prevent abrupt rebound of the suspension, which can cause the tires to lose traction, especially when at full lean. Even if you don’t lose traction, the extended forks can push the bike into a wider line than desired.
8. Use the Thrake/Brottle Overlap Technique
The throttle/brake overlap technique (Thrake or Brottle, get it?) is how you smoothly transition from brakes to acceleration while leaned fully in a corner. Begin throttle roll-on just before completely releasing the brakes to smooth the transition from braking force to driving force. See me use this technique through turn 1 at Loudon in the video
The brake/throttle overlap technique takes some practice. One technique that is helpful is if you curl your fingers over the front brake lever as you squeeze, then simply straighten your fingers to release brake pressure as you roll on the throttle. You can practice this technique using Brake Drill #4 in Riding in the Zone.
9.Timing is Critical
How long you remain on the brakes is determined by the curve. Imagine yourself barreling dwn a tight downhill hairpin and need to scrub of, sy 15-20mph. You trailbrake into the turn, but then release the brakes well before the middle part of the turn. What then happens is gravity “accelerates the bike at a time when you haven’t gotten the bike turned enough. The result is a too wide line that needs another turning inpt to stay in your lane. By hanging onto the brakes a bit longer, the front wheel is pointed more toward the corner exit and not toward the outside of the turn.
10. Brake Pressure is Critical
The right amount of brake pressure (force) will preserve traction (see #4) but also help the bike turn more easily (see #2). At some point in the trailbraking process, perhaps 1/3 around the curve, you are no longer trailbraking to slow down, rather you are using the brakes as a tool to help get the bike completely turned and pointed safely toward the exit (where you can then transition to the throttle (see #8). Brake too hard and the bike will likely stand up instead of lean in…not what you want at that point.
Trail braking Takes Practice
Trailbraking requires expert-level brake and corner control, which means that most people should be careful with this technique until they become proficient through practice. Once a rider is reasonably proficient at both braking and cornering, then he or she should start to explore the benefits of trailbraking, because one day, they’ll need this skill.
How to Practice Trail Braking
By mastering trail braking, you can train your mind and muscles so that you believe it is possible to slow the bike down even when leaned and stay upright. This mastery tells you not only that it’s possible to salvage the corner, but also tells you just how much braking force can be used without sliding the tires. If you think this skill will magically appear when you need it, you are dead wrong! You must practice to make this important tool available to you. How do you practice trail braking? Start in a clean and clear parking lot (see the video above) And then practice on the street where no surface hazards are present. Then refine and solidify the technique by going to a track day and asking an instructor to help you work on this technique.
Braking is one of the most important skills to learn. Regularly practice emergency braking and refine your corner braking technique so these skills remain sharp.
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