What's equally impressive as the output is the weight of the motors. The 845-hp version measures 21 inches in diameter and is ...

Donut Lab offered more details about its donut-shaped electric motors, which promise a much higher power and torque density ...

Mid-drive motors, also called center-drive or crank-drive motors, are located in the middle of the e-bike, usually near the bottom bracket. Unlike hub motors, mid-drive motors use the bike’s chain and ...