This is a genuine 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
. Use with 1/2" Two-way Ratchet Wrench (#53R4)
․ Product Dimensions: 4.3x 4.3 x 4.5cm
․ Weight : 0.170kg
․ Color : Black
․ Material : Cr-Mo Steel