YASA beats own power density record pushing electric motor to 59kW/kg benchmark

Summary

Earlier in the summer YASA achieved 550kW (738bhp) from a 13.1kg version of its new axial flux prototype motor, equating to an unofficial power density world record of 42kW/kg Now latest testing of an even lighter 12.7kg version on a more powerful dynamometer has shattered this record, with a staggering 750kW (>1000bhp) short-term peak rating, resulting in a new unofficial power density record of 59kW/kg YASA also estimates that all-important continuous power for the new motor will also be in the region of 350kW-400kW (469bhp-536bhp) Compact, scalable and with no exotic materials used, the new motor is set to bring game-changing technology to the high-performance automotive sector Click here to access supporting assets For additional media asset requests, please contact media@yasa.com (Yarnton, Oxfordshire, UK) October 22, 2025 – YASA, the global leader in the design and production of axial flux motors, has smashed its own unofficial power density world record with a staggering new benchmark for ultra-high-performance electric motors. Earlier in the summer, YASA achieved 550kW (738bhp) from a 13.1kg version of its new axial flux prototype motor, equating to an unofficial power density world record of 42kW/kg, but latest testing of an even lighter 12.7kg version has significantly exceeded this. Hitting a staggering 750kW (>1000bhp) short-term peak rating, YASA has set a new unofficial electric motor power density world record of 59kW/kg – a 40% increase on initial testing. But the motor is not just focused on setting new standards for peak power, YASA also estimates that its all-important continuous power will be in the region of 350kW-400kW (469bhp-536bhp). Designed and developed at YASA’s high-tech Oxford Innovation Centre, the breakthrough represents another major validation of the company’s axial flux technology. And crucially, this isn’t a theoretical model or digital concept: it is a fully functional prototype, undergoing a rigorous development program. Compact...