• UK based Zeroshift limited has developed a new transmission technology that results in completely instantaneous change in gear ratio with no interruption of torque to the driving wheels. 
  • In theory, the zeroshift principle is simple. 
  • The new gear is engaged while the previous gear is still driving, eliminating the break in torque experienced in conventional manual and automated manual transmissions during a gear shift. 
  • As the new gear takes up the drive, the previous gear is automatically disengaged. 
  • Zeroshift achieve this using HBMs MGC Plus data logger and Catman software.



  • The technology claims to outperform all other transmission technologies in terms of fuel economy and performance. 
  • It results in fuel economy of at least two percent compared to a manual transmission and 1% when compared to a planetary automatic transmission with an equivalent number of ratios. CO2 emissions are also reduced similarly. 
  • Due to zero torque interruption, performance is improved, which would allow downsizing of engine and thus a further potential to reduce CO2. 
  • Zeroshift is also claimed to be cheaper to produce than a DCT (Dual clutch transmission) or an equivalent automatic transmission with epicyclic gears. 
  • Further this gear shift mechanism may be built into an existing manual gearbox.
  • The biggest advantage is the safety that results due to seamless gear shifting. 
  • Any interruption of engine torque to the wheels introduces a loss of control, which may be potentially unsafe in certain circumstances. 
  • For instance, torque interruptions at intersections, roundabouts and on highway ramps can cause accidents as the driver may require acceleration and find none. 
  • Even during emergency braking engine braking, engine braking is expected but is not available due to interruptions in gear shift.
  • Zeroshift is also lightweight and compact, thus requiring lesser space, thereby resulting in the available vacant space in the frontal crumple zone, leading to increased safety.