Yamaha’s new Y-AMT semi-automatic gearbox has been introduced with the 2024 MT-09 Y-AMT and is anticipated to be integrated into more models in the near future.
Earlier this year, Yamaha announced the Y-AMT system, short for Yamaha Automated Manual Transmission, detailing its functionality. However, the company remained silent about which bikes would feature it, only mentioning its arrival in a ‘range of models.’ Now, it’s confirmed that the MT-09 is the first to include this technology, with deliveries starting later this year.
The Y-AMT system is relatively simple, made possible by the latest advances in engine control and computing power. Unlike Honda’s DCT, which features a completely redesigned gearbox with two clutches, Yamaha’s Y-AMT retains the standard MT-09’s manual gearbox. It incorporates two electromechanical actuators: one attached to a conventional clutch and the other connected via a pushrod to the gear lever spline. These actuators are mounted externally, avoiding expensive internal redesigns, which should keep the system affordable.
The actuators are controlled by an ECU, which takes inputs from the bike’s sensors, including throttle, brake, and IMU, to determine the optimal shifting strategy. Riders can choose between manual mode (MT) using a ‘see-saw’ switch on the left handlebar, or two automatic modes (AT).
- MT Mode: Shifts are made by pulling a trigger-style button with the left forefinger for upshifts, and pressing with the thumb for downshifts.
- AT Mode: Offers two sub-settings: ‘D’ for relaxed, early shifts and ‘D+’ for higher revs and maximum performance.
Switching between AT and MT modes is done via a button on the right handlebar, with another button toggling between D and D+ modes.
In MT mode, Yamaha claims the bike allows riders to focus more on other aspects of riding, citing a more direct connection between the brain and hands compared to the feet. Without a shift pedal, riders have more freedom to position themselves optimally for every corner.
