IceToolz lockring tool to remove the castellated nut or threaded chain guard from the front sprocket of a Bosch Gen 2 motor. Cheaper alternative to the genuine Bosch tool
Generation 2 (Gen 2) covers Active Line and Performance Line from 2014 to 2018 and Performance Line CX from 2017 to 2019. These motors have a small sprocket and look like the motor Below.