You need to use this tool to align the drive gear and set the bearing sprags, so that you can re-fit the gear onto the freewheel sleeve of the Bosch Gen 4 motor.
This is a genuine Bosch lockring tool to remove the castellated nut or threaded chain guard from the front sprocket of a Bosch Classic motor. Cheaper alternative to the genuine Bosch tool
Generation 1 (Gen 1) covers Classic Line and Classic Line +. These motors have a large sprocket and look like the motor here.
Bosch Gen 2 Lockring Sprocket Nut Tool PLA00927, this is a lockring tool to remove the castellated nut or threaded chain guard from the front sprocket of a Bosch Gen 2 motor.
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 shown here.
This is a high quality 3/8 drive Bosch lockring tool to remove the castellated nut or threaded chain guard from the front sprocket of a Bosch Gen 3 motor.
Generation 3 (Gen 3) covers Active Line, Active Line Plus and Performance Line from 2018. These motors have a large front sprocket and look like the motor Below.
This is a high quality Bosch lockring tool to remove the castellated nut or threaded chain guard from the front sprocket of a Bosch Gen 4 motor.
Generation 4 (Gen 4) covers the Performance Line CX and cargo line from 2020 These motors have a large front sprocket and look like the motor Below.
Bosch main motor bearing tool
This tool will ensure that your new main motor bearing will be fitted without damage. The main motor bearing fitted within the Bosch Gen 2 motor is a large bearing with extremely small ball bearings within it. These ball bearings can be very easily damaged when this bearing is fitted. The main motor bearing tool can be used to press the bearing into the motor cover and then support the bearing while the sprocket carrier/boss is pressed into the bearing.
Bosch main motor bearing with fitting tool
This tool will ensure that your new main motor bearing will be fitted without damage. The main motor bearing fitted within the Bosch Gen 2 motor is a large bearing with extremely small ball bearings within it. These ball bearings can be very easily damaged when this bearing is fitted. The main motor bearing tool can be used to press the bearing into the motor cover and then support the bearing while the sprocket carrier/boss is pressed into the bearing.
Crank arm puller for Bosch, Brose, Impulse, Yamaha. This puller will fit all models of all motors.
It fits ISIS drive cranks, square drive cranks and the Bosch Gen 3 Octalink. There is a button on the end and you just need to use it or not, depending on the type of crank you have.