Electric bicycle (eBike) motor technology has steadily improved since its inception back in 1895 (US Patent 552271 A). The crude 10-volt battery-powered eBike patented by Ogden Bolton, Jr. set the stage for what is now an ever-growing class of bicycles. Multiple companies have emerged as of late and are mass-producing mid-drive electric bike motors that offer varying power, total energy and torque specs. Below are the highlights and differences between the top mid-drive electric bike motors available today.
Bosch CX eBike Motor
Top-shelf motor is best for mountain biking where sustainable power is needed
75 Nm of continuous maximum torque offers longer power curve for long and steep climbs
UL listed certification, assuring each unit passed rigorous testing for peak performance, security and safety on the trails
Gear change recognition sensors allow for smoother gear changes under max torque
7 lbs (3.2 kg) motor; 5.9 lbs (2.66 kg) battery Total: 12.9 lbs (5.86 kg)
Commuting or Road
No matter which eBike you choose, keep in mind that no mid-drive motor is the same. Electric bike manufacturers will agree that different mid-drive motors are suitable for different styles of riding. Where a Bosch Performance Line Speed motor offers top speed with a heavier motor for commuting, the Yamaha PWseries motor provides a lighter unit that can be fitted with double chainrings to offer more gear options for trail riding. Knowing the differences between the most popular mid-drive motors on the market will help you make a more intelligent decision when choosing your new eBike.