Electric motorcycles don't need gearboxes? New technology could change that

Since electric motors operate across a wide RPM range and deliver high torque even from a standstill, electric vehicles generally don't need multi-speed transmissions. However, that could change for electric motorcycles. British company E-Motiv Shift Systems has unveiled a two-speed powershift transmission designed to change gears without interrupting power delivery. The official press release is only accessible to authorized users, but outlets such as The EV Report have already covered the technology. E-Motiv Shift Systems is also teasing the new transmission on its official website.

Electric motorcycle manufacturers typically have to compromise between acceleration and top speed. A shorter gear ratio provides greater pulling power when setting off, while a taller ratio allows for a higher top speed. A two-speed transmission could combine both advantages, potentially offering several practical benefits. According to E-Motiv, the technology could allow the electric motor to operate more frequently within its optimal efficiency range. In the best-case scenario, this could not only improve acceleration but also reduce energy consumption and extend riding range. However, the manufacturer has yet to provide specific figures for the potential improvements.

Zeroshift system provides the technical foundation

The transmission is based on the so-called Zeroshift system, which was originally developed for vehicles with internal combustion engines. Unlike conventional manual transmissions, the original system uses special dog-engagement rings that allow shifts between gear ratios under load. The next gear can begin engaging while the previous gear is still transmitting torque. The new gear then takes over power delivery without the interruption normally associated with changing gears. E-Motiv has further developed this principle for electric powertrains. However, the company has not yet disclosed exactly how the mechanism has been implemented in the new version.

The new transmission is scheduled to make its public debut at EICMA 2026, the motorcycle trade show taking place in Milan from November 3 to 8. At the same time, E-Motiv is developing a demonstration motorcycle called Demo 1, which will be used to test the technology under real-world riding conditions for the first time. Initial tests are planned for the first quarter of 2027.