KTM AMT Explained: Is KTM’s Automatic Transmission the Future of Motorcycles?

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For over a century, the motorcycles had one simple mechanical design – the rider controls the clutch, picks the correct gear, and manages the power of the motorcycle. But what if there was a way to automate some or all of these procedures? This is what KTM is attempting to do with the development of their Automated Manual Transmission (AMT) motorcycles, which eliminate the clutch lever and allow the automatic or manual shifting. But is it really a step ahead or just complicating the motorcycling too much?

We will discuss the details and analyze the new concept.

What KTM’s AMT Really Is (And What It Isn’t)

At the base level, KTM’s AMT is actually nothing more than a traditional automatic transmission. KTM uses a traditional six-speed manual gearbox with constant-mesh gears and dog engagement, which is found on many performance motorcycles. Technical Deep Dive on KTM’s Au…

The only difference is that the inputs to the traditional manual gearbox have been replaced with electronic/ electromechanical components:

  • The clutch lever is completely removed
  • Gear shifts are accomplished via an electromechanical actuator.
  • An additional Transmission Control Unit (TCU) and engine ECU work together to automate gear shifts. Technical Deep Dive on KTM’s Au…

And the rider can choose between manually shifting without using a clutch or letting the transmission do it all. Basically, the guts of the gearbox remain the same, but the control system is repurposed to make the whole thing automatic.

The Most Radical Change: No Clutch Lever

Perhaps the most controversial part of KTM’s AMT is the centrifugal clutch. Unlike a normal clutch that requires manual operation, this clutch engages automatically depending on the engine RPM and throttle position. In other words, the clutch will start to engage the higher the engine RPM goes. As such, there are some immediate implications of using a centrifugal clutch in an AMT.

  • The bike can’t stall
  • It can be ridden from a dead stop easily
  • There is no need to coordinate clutch and throttle

But there is also one major downside. Because a centrifugal clutch disengages at low RPMs, leaving the bike in gear doesn’t lock the rear wheel when parking. KTM had to address this issue by adding a mechanical pawl inside the transmission that serves as a parking lock. This is a feature that KTM had to implement on their bikes, because they essentially had to redesign the whole transmission in order to get rid of the clutch lever. Technical Deep Dive on KTM’s Au…

How the Motorcycle Actually Shifts Gears Without You

When shifting, either manually using paddles or automatically, the whole thing is handled by electronics.

Here’s what happens:

  • Sensors measure engine rpm, throttle position, vehicle speed, lean angle, and acceleration.
  • The TCU decides when a shift is needed.
  • The ECU reduces engine torque to allow for smooth upshifting.
  • The electromechanical actuator rotates the shift drum.
  • And the gearbox shifts into the next gear in 50 milliseconds or so. Technical Deep Dive on KTM’s Au…

That’s about as quick as a quickshifter, but an important difference is that this system doesn’t need to be triggered by a rider input. It blurs the line between rider and machine as the motorcycle itself controls the downshifting without any rider input.

Automatic Mode: The Motorcycle Thinks for Itself

In auto mode, KTM’s AMT acts almost like a traditional automatic, only far more intelligent

The AMT uses data from multiple variables including:

  • Engine torque,
  • RPM,
  • lean angle,
  • pitch angle,
  • acceleration,
  • speed of vehicle,
  • input from rider

to determine the best time to shift gears. The AMT can even downshift or kick down when the rider closes the throttle, or shifts weight to rapidly decelerate the motorcycle. It can even temporarily turn into a manual transmission and then return to automatic when the rider lets off the gas. It’s like having a co-pilot that not only knows when to shift, but why. Technical Deep Dive on KTM’s Au…

The Mechanical Foundation Is Still Pure Motorcycle Engineering

Despite all the electronics, KTM has kept traditional mechanical architecture:

  • Shift drum
  • Shift forks
  • Dog engagement gears

Mechanical gear indexing system Technical Deep Dive on KTM’s Au… This is significant. Unlike CVT transmissions, dual-clutch systems, or torque converters, KTM’s AMT keeps the efficiency, performance, and power transfer characteristics of a traditional motorcycle gearbox. The electronics merely automate the control of existing mechanical systems. This means that the potential for performance is maintained. But complexity increases exponentially.

Why KTM Added a Dedicated Transmission Computer

KTM didn’t only change the ECU. They added an entirely separate Transmission Control Unit to handle shift operations. Technical Deep Dive on KTM’s Au…

This architecture enables:

  • Accelerated shift initiation
  • Enhanced actuator control precision
  • Isolated diagnostic and safety systems
  • It also proves a critical point.
  • This isn’t merely an assistance system.
  • It’s a complete electronic transmission control solution.

How KTM’s AMT Compares to Rival Systems

KTM is not the only manufacturer interested in the direction of automatically controlled transmissions. Yamaha, BMW and Honda have all been experimenting with the technology. But each has taken a slightly different approach to the problem.

While Honda’s E-Clutch only automates the clutch function (shifting is still manual), BMW’s ASA system automates both the clutch and shifting functions but employs a standard clutch assembly. Meanwhile, Yamaha’s Y-AMT utilises actuators for both clutch and shifting operations. By comparison, KTM’s system uses a centrifugal clutch and an automated shifting actuator. Technical Deep Dive on KTM’s Au… The result is a system that is mechanically simpler but operationally quite different.

The Advantages Are Obvious

KTM’s AMT has several advantages.

  • First of all, it is easier to ride.
  • The clutch does not have to be used.
  • Therefore, the engine will not stall thanks to the Centrifugal clutch.
  • In addition, gear shifts are faster due to the electromechanical actuator.
  • Moreover, the drivetrain reduces driver fatigue.
  • Especially in traffic and on long journeys, this is a great advantage.
  • Finally, the system offers high automation.
  • The system itself optimizes the gear selection.

This would significantly reduce the learning curve for amateur riders.

But the Concerns Are Real Too

While innovative, AMT is not without its issues.

  • Loss of control
  • Some riders might find AMT to be a step too far in terms of technology.
  • Complexity
  • Adding more electrical parts means more things can go wrong.
  • Cost
  • The electronics and servos needed for an AMT system will no doubt drive up maintenance costs.
  • Reliability?

Manual gearboxes have been around for a long time, they are simple devices that have been tested by time itself. How reliable can computerised gearboxes be?

Is This the Future of Motorcycles?

The answer isn’t that simple. For performance-minded sport riders, manual control makes more sense. But for the average rider, cruisers, commuters, and new riders, automatics make perfect sense. The fact is that motorcycle transmissions are changing, just like auto transmissions did years ago. Automatic transmissions didn’t disappear in automobiles, but they did become less common. The same could happen in motorcycles.

Wrapping It Up: Evolution or Unnecessary Automation?

KTM’s new Automated Manual Transmission is a definite showstopper. It is both driver-friendly, like an automatic, yet retains the feel of a traditional manual gearbox. However, it raises philosophical issues regarding the nature of motorcycling. Is rider control truly important, or is convenience a priority? KTM has definitely opened a door, but will the motorcycle industry as a whole walk through? That remains to be seen.

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