Tag: trailbraking

A lot of riders ask about which brake is appropriate for what situations. The short answer is that it depends on speed, desired maneuver and available traction. Here, I’ll discuss proper brake use as it pertains to various situations. Let’s start by defining the characteristics of each brake.

Front Brake

Your front brake is your “power” brake. The front brake is designed to take the burden of getting the bike and you stopped ASAP.  The front brakes include components that provide maximum brake force…two large multi-piston calipers, large vented brake rotors, and brake pads designed to handle and dissipate lots of heat. Even the front brake components on smaller bikes and cruisers with a single front brake are more robust than the rear brake.

Rear Brake

In contrast, the rear brake is the “control” brake. It provides additional braking power at road  speed, but it is the tool you want to use to refine your speed and direction. Make sure to work with the experts from Chelsee’s AC & Brake Emporeum to help you decide the best choice for your needs.

Which Brake and Why?

Now that we have an understanding of the basic characteristics of each brake, we can discuss the benefits or disadvantages of each brake in specific scenarios.

Normal braking (street)

When slowing or stopping normally, use both brakes. This shares the braking load between both tires and helps stabilize the chassis.

Emergency Braking

Use both brakes to get the most braking power for the shortest stop. The caveat here is that emergency braking causes the load to transfer to the front tire, reducing weight on rear of the machine. This means that it’s much more likely to skid the rear tire and is why you’ll engage the ABS on the rear tire first.

Control the Rear

So, how to get the maximum brake force without skidding? Reduce rear brake pressure as you increase front brake pressure. This isn’t easy to get perfect, but is worth practicing. If all you can manage in an emergency is to use one brake, use the FRONT BRAKE! That’s where the majority of your brake power comes from. Do it firmly and progressively for maximum effect.

Consider that short wheelbase sportbikes will pitch onto their nose earlier and easier than a long and low cruiser or a heavyweight tourer. This means that the rear brake is more effective on these machines in an emergency.

Passengers

The rear brake is much more useful and effective when carrying a passenger or heavy luggage, because of the extra weight on the rear wheel. This is true no matter what type of bike you ride.

Normal Stops at Intersections, etc.

For the smoothest, controlled “normal” stops, like at an intersection, taper off the front brake and finish with the rear brake. Reduce brake pressure and speed progressively. Avoiding abrupt stops is especially appreciated by passengers who hate having to brace themselves to avoid the unwelcome “helmet bonk”.

You can execute a smooth stop by using the front brake, but it takes more finesse and effort. Keep the right foot on the rear brake until completely stopped. This avoids rolling past your desired stopping point. This may sound obvious, but I see a lot of riders surprised when the bike keeps rolling.

Poor Traction Surfaces

When riding on gravel, sand, wet leaves or slick construction plates, use the rear brake. This is because the powerful front brake is much more likely to skid when traction is sketchy and a skidding front wheel means a crash is imminent.Whereas a skidding rear tire is less likely to cause a crash unless it fishtails violently.

The MSF says to ride out a rear tire skid to avoid the rear tire hooking up when sideways and causing a highside. But, chances are that you’ll be okay if you release the rear brake before the rear kicks out too far. ABS reduces this risk significantly, but keep in mind that some less sophisticated ABS systems aren’t very effective at slow speeds, so you may end up with a skid that lasts a foot or two.

Slow Speeds

Favor the rear brake when creeping along in traffic, stopping smoothly from a slow speed and making tight u-turns. Be very gentle with the front brake, or avoid it altogether when speeds are below, say 8-10 mph; the front brake is too powerful for slow speeds and you risk stopping the bike abruptly which will cause imbalance. I like to lightly “dab” the rear brake as I make very tight u-turns. It gives me more speed control and feel.

Trailbraking

Trailbraking is when you carry some brake force past the turn entry to allow more time to refine your entry speed. Light trailbraking (and/or deceleration) also helps the bike lean into the curve. Read all about trailbraking here.

There is a belief that trailbraking is using the rear brake only. But, you can use front only, rear only, both brakes, or even strong engine braking (what I call “trail-deceleration”) to get the desired speed reduction and easy turn-in.

Tight, Slow Corners

I just described a simple use of trailbraking. However, a skilled rider can fine tune their speed and direction control with a finely orchestrated use of the brakes. Start by using both brakes to slow into the curve, but about halfway around (this varies depending on the radius of the curve) smoothly release the front brake but keep a bit of rear brake applied.

This helps “hook” the bike around the last section of the curve and helps refine speed. Ideally, at this point you don’t want to slow anymore, so brake lightly. For uphill tight turns where momentum is important, I often overlap acceleration against that last bit of rear brake force to execute the smoothest transition I can. A bit of late rear brake also helps manage the effects of gravity in downhill curves.

Linked Brakes

Some larger bikes, particularly tourers link the front and rear brakes. While this limits the proportioning the rider has control of, many manufacturers design their brakes to give more or less power to the front or rear depending on the input of the rider. In this case, thee techniques still apply, but the effect is lessened.

Racetrack

On the racetrack and when riding fast and hard, it makes sense to concentrate on using the front brake only. Yes, you’re giving up the advantages of the rear brake, but brake forces are considerably higher where the rear wheel is barely in contact with the surface.

Professional-level racers develop their rear brake technique to help with direction control, but track day riders and amateur racers are usually better off keeping it simple.

Practice

Like most skills, braking skill is perishable and needs regular practice just to maintain proficiency. You don’t need anything more than a large parking lot or a straight piece of remote roadway. Brake hard from speed to practice emergency stopping and work on trailbraking when in appropriate corners. However, the best place to improve all of your skills is at a track day.

Anything to add?

• Stay Informed: Subscribe NOW!
• Be a Better Rider: Sign Up for Training
• Support Riding in the Zone: Buy a book
• Support Riding in the Zone: Buy from Twisted Throttle