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This IceToolz lockring tool (M803) is designed for cyclists maintaining Bosch Gen 4 e-bike motors (Performance Line CX and Cargo Line from 2020 onwards). It provides a reliable way to remove the castellated nut or threaded chain guard from the front sprocket, simplifying maintenance. A key caveat is its specific compatibility with Bosch Gen 4 systems; it will not fit other motor generations or brands. Key features include its durable Cr-Mo steel construction and precise fit for secure operation.
| Model Part Number | M803 |
|---|---|
| Brand | IceToolz |
This tool is specifically designed for Bosch Gen 4 motors, which includes the Performance Line CX and Cargo Line models manufactured from 2020 onwards.
Yes, you will need a 1/2" two-way ratchet wrench. The IceToolz #53R4 is specifically recommended.
No, this tool is only compatible with Bosch Gen 4 motors. It will not fit older generations (Gen 2, Gen 3) or motors from other manufacturers.
The tool is constructed from durable Cr-Mo Steel (Chrome-Molybdenum Steel).
Clean the tool with a dry cloth after each use and store it in a dry place to prevent rust. Avoid exposure to harsh chemicals.
The product dimensions are approximately 4.3 x 4.3 x 4.5cm, and it weighs 0.170kg.
Verify that your e-bike motor is a Bosch Gen 4 model (Performance Line CX or Cargo Line from 2020+). This tool is not compatible with other motor generations or brands.
Ensure you are using a compatible 1/2" ratchet wrench and that it is securely attached to the lockring tool. Apply steady, even pressure. If the nut is seized, a small amount of penetrating lubricant may help, but use sparingly around motor components.
Inspect the tool regularly. If the teeth are chipped or worn, it is recommended to replace the tool to avoid damaging the motor's locking nut.
Setup: This tool requires a compatible 1/2" two-way ratchet wrench (IceToolz #53R4 recommended) to operate. Simply attach the tool to the ratchet wrench's drive mechanism. Ensure the tool is correctly seated on the castellated nut or threaded chain guard of the Bosch Gen 4 motor before applying force.
Compatibility: This lockring tool is designed *exclusively* for Bosch Gen 4 motors, including Performance Line CX and Cargo Line models manufactured from 2020 onwards. It will *not* fit older Bosch motor generations (Gen 2, Gen 3) or e-bike systems from other manufacturers.
Care: After use, clean the tool with a dry cloth to remove any dirt or grease. Store in a dry environment to prevent rust. The Cr-Mo steel construction is robust, but avoid exposing it to harsh chemicals or excessive moisture. Periodically check the tool for any signs of wear or damage.
