Birzman Lockring Socket Bosch 50mm (Gen2)

The Birzman Lockring Socket Ø50 mm is a precise specialty tool for the installation and removal of chainring lockrings on Bosch® e-bike drive systems of Gen 2. The tool is compatible with 8-notch lockrings Ø50 mm and ensures a secure, material-friendly power transfer.

The robust, CNC-machined design made of alloyed steel guarantees high stability and long durability – ideal for workshop and professional service work on e-bikes.

Suitable for the following Bosch® drive systems:

• Bosch® Active Line (model years 2014–2017)
• Bosch® Performance Line
• Bosch® Performance CX Line (from model year 2014)

Features:

• Specialty tool for Bosch® drive systems
• Fits hex lockring Ø50 mm
• For installation and removal of chainring lockrings
• Precise fit for secure hold
• High-quality CNC-machined steel construction

Technical details:

• Drive: 1/2" square drive
• Material: CNC-machined alloyed steel