The Cyclus Bosch Lockring Tool is specifically designed for removing and mounting the aluminum lock ring that holds the chainring in place on all Bosch e-bike mid-drive motors. This design is an improvement over the original Bosch manufactured tool as the Cyclus tool comes equipped with a guide bolt which fastens to the axle of the motor to make for much easier removal and installation of the lockring.
Simply attach the Cyclus Bosch Lockring Tool using the guide screw, then use a 32mm wrench to remove or fit the lockring in place.
There is one tool option to fit generation 2 motors: All versions of the Performance CX, Performance Speed, Performance, and pre 2017 Active motors equipped both with the smaller or larger chainrings.
Another tool option is available for generation 3 Bosch Active and Active+ motors (2017 onwards) with the larger chainring.
For more information, contact one of our electric bicycle experts today who can answer any questions about the Cyclus Bosch Lockring Tool.