This 8-notch tool fits precisely and is designed to remove and install the lockring that secures front chainrings of Bosch® Gen 2 e-bike motors once the crank arm has been removed.
KEY FEATURES
Fits Bosch® Active Line (chainrings less than 20 teeth)
Bosch® Performance Line and Performance Line CX models
For lockrings with 50mm outside diameter and 8 notches
Replacement for Bosch® 0275009003 tool
Torque wrench compatible 3/8" square drive
Constructed of 4140 heat treated steel and plated for long life
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