The electric vehicle industry could be on the brink of a major transformation thanks to a breakthrough motor technology developed by YASA, a Mercedes-Benz subsidiary. This New in-wheel EV motor Invention has the potential to dramatically reduce vehicle weight by as much as 1,000 pounds—while delivering extraordinary power and improved driving range.
Record-Breaking Power in an Ultra-Light Package
YASA’s newly developed motor weighs just 28 pounds (12.7 kg), yet it can produce a staggering peak output of over 1,000 horsepower per wheel. For sustained use, the motor delivers between 469 and 536 horsepower, surpassing the company’s previous record of 738 horsepower from a 29-pound unit. To put this into perspective, the 2025 Nissan Leaf produces 214 horsepower from a single motor, while a Tesla Model S uses three motors to generate roughly 1,020 horsepower.
This remarkable performance is made possible by YASA’s advanced axial flux motor design—at the heart of the New in-wheel EV motor Invention.
Axial Flux Technology: Smaller, Smarter, Stronger
Traditional EVs rely on radial flux motors, which are long, cylindrical, and relatively heavy. In contrast, axial flux motors feature a compact, disc-like “pancake” design where magnetic flux runs parallel to the motor shaft. This allows for far higher power density in a much smaller and lighter structure.
The motor does not depend on rare or exotic materials, and its scalable design makes it suitable for various vehicle segments, from performance cars to future mass-market EVs.
Cutting Up to 1,100 Pounds From Future EVs
One of the biggest advantages of this New in-wheel EV motor Invention is its ability to eliminate many traditional drivetrain components. By integrating the motor directly into the wheel assembly, parts such as driveshafts, differentials, and even conventional rear brakes can be removed.
YASA estimates that simply replacing a conventional drivetrain could save around 440 pounds (200 kg). Vehicles designed from the ground up around this system could shed up to 1,100 pounds (500 kg), significantly boosting efficiency, acceleration, and range.
Regenerative Braking and the Future of EV Design
The system also incorporates advanced regenerative braking, capturing energy during deceleration and feeding it back into the battery. This reduces reliance on friction brakes, further saving weight and space.
While initially aimed at high-performance EVs and supercars, the New in-wheel EV motor Invention opens the door to longer-range, lighter electric vehicles with more interior space and improved aerodynamics—reshaping how future EVs are built and driven.
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