Bosch Lockring Socket 43mm (Gen3)

The Birzman Lockring Socket Ø43 mm is a precision special tool for installing and removing chainring lockrings on Bosch® Gen 3 e-bike drive systems. The tool is compatible with 8-slot lockrings Ø43 mm and ensures secure, material-friendly power transmission.

The robust, CNC-machined design made of alloy steel guarantees high stability and long durability. Ideal for workshops and professional e-bike servicing. Suitable for the following Bosch® drive systems: Bosch® Gen 3 Active Line Active Line Plus (from model year 2017) Bosch® Gen 4 Performance Line Performance Line CX Cargo Line Features: Special tool for Bosch® Gen 3 and Gen 4 drive systems Fits 8-slot lockring Ø43 mm For mounting and dismounting chainring lockrings Precise fit for a secure hold High-quality CNC-machined steel construction Technical details: Mount: 1/2" square taper Material: CNC-machined alloy steel