Out-braking the ABS Myth

Summary

This script discusses motorcycle ABS systems, emphasizing that despite their life-saving potential, riders often default to ineffective braking habits in emergencies. It explains how ABS works in three phases to prevent wheel lock-up, but skilled riders can outperform it using 'threshold braking'. The video concludes by urging riders to practice braking techniques for better control and safety, highlighting the importance of vision with a promotion for Flying Eyes riding glasses.

Takeaways

• 🛑 Modern ABS systems on motorcycles are designed to stop the bike faster than a rider can manually.
• 🏍️ In serious motorcycle crashes, 80% of riders either don't brake at all or only use the rear brake.
• 👮‍♂️ Retired police sergeant Ryan Austin explains that the front brake is more powerful but riders often default to the rear in emergencies.
• 🚗 Car ABS systems are different from motorcycle ABS, with four wheels and a larger contact patch, allowing for more sophisticated braking.
• 💡 The script explains the three phases of ABS operation: normal use, emergency use with sensor activation, and active shedding of brake pressure to prevent wheel lockup.
• 🚫 Despite ABS, skilled riders can still outperform the system by using a two-stage braking technique known as threshold braking.
• 🇨🇦 The script humorously points out that even in icy conditions, ABS can be outperformed by proper braking technique.
• 🔍 Riders can predict tire grip better than the ABS system, which is only reactive to slides.
• 🏁 ABS prioritizes steerability over straight-line stopping distance, which can be a lifesaver in avoiding accidents.
• 👓 The video concludes with a reminder of the importance of good vision for safe riding, promoting Flying Eyes riding glasses.

Q & A

What is ABS, and how does it function in vehicles?

ABS, or Anti-lock Braking System, is a safety feature designed to prevent wheel lockup during braking. It uses sensors to monitor wheel speed and adjusts braking pressure to maintain traction, allowing the driver to retain steering control while braking.

How does motorcycle ABS differ from car ABS?

Car ABS is more advanced due to the four-wheel setup, where each brake is independently controlled by a four-channel ABS system. Motorcycles, however, have two wheels with significantly less contact with the ground, making the braking dynamics more sensitive to weight transfer and rear-wheel lockup.

What are the phases of ABS activation during braking?

There are three phases of ABS activation: Phase 1 occurs during normal use when hydraulic pressure is applied to the brakes. In Phase 2, the ABS pump intervenes if it detects a slide, holding braking pressure at a safe level. Phase 3 happens if a wheel locks, and the system releases pressure to restore traction.

Why do many motorcyclists use only the rear brake in an emergency?

In emergencies, about 80% of riders instinctively use only the rear brake due to fear of flipping over the handlebars or losing control. This reaction is often hardwired and leads to inefficient braking because the front brake provides more stopping power.

What is threshold braking, and how is it different from slamming the brakes?

Threshold braking involves applying the brakes in a controlled, two-stage manner, allowing the front tire to build traction as the weight transfers to it. Slamming the brakes, by contrast, puts the ABS into crisis mode, causing it to constantly adjust and reducing braking efficiency.

Can a skilled rider outperform an ABS system during braking?

Yes, a skilled rider can sometimes outperform ABS, particularly when using threshold braking. A human can anticipate weight transfer and apply braking pressure more strategically, whereas ABS is reactive and may prioritize stability over maximum stopping power.

Why is ABS still considered a critical safety feature despite its limitations?

ABS is statistically proven to save lives because it reduces the likelihood of wheel lockup, helping riders maintain control in emergency situations. While a skilled rider can sometimes brake better without ABS, most riders benefit from ABS as it compensates for common mistakes.

What common braking mistake do motorcyclists make in crashes?

Many motorcyclists fail to use the front brake or use it improperly in crash situations. In about 80% of serious motorcycle crashes, riders either don't brake at all or rely solely on the rear brake, which offers much less stopping power.

How does ABS handle braking on surfaces with limited traction, like ice?

ABS can extend stopping distances on surfaces with limited traction, such as ice, because it constantly releases and re-applies brake pressure to prevent wheel lockup. This process is similar to driving an old car on ice, where braking control is more difficult.

What practice is recommended to improve emergency braking skills for motorcyclists?

Riders are encouraged to practice threshold braking, which combines controlled use of both the front and rear brakes. This helps develop the instinctual ability to brake effectively in emergencies and maximizes the benefits of ABS without simply relying on it.