The Bosch ORing for mounting the chainring is a vital service component designed to ensure a secure and precise fit of the chainring to Bosch ebike motor systems This highquality Oring provides an effective seal preventing dust and moisture from affecting the drivetrain while maintaining the integrity of the mounting systemManufactured from durable wearresistant rubber the Oring helps reduce vibrations and ensures smooth power transfer from the motor to the drivetrain It is an essential part of routine ebike maintenance and is compatible with various Bosch motor systems

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