Spanish electric bike drive system manufacturer Mahle, has launched a new system called the XS. It is compatible with previous X20 and X30 motors, and eliminates the need for an internal battery, instead, using a "compact" eX1 exernal battery as the sole power source. With the X20 motor the entire system weighs just 2.5kg, and can apparently generate as much torque as a "55Nm mid-drive." It's already available in the market for brands to take advantage of, and can even be used to transform an...
