Bosch Locking Ring EB112000JH Aluminium Ø42.5 mm Black

Product Description

Product features

• Original Bosch locking ring designed to secure the spider and chainring mounted on Bosch eBike motors BDU4XX, BDU31YY and BDU37YY
• Compatible with Bosch eBike System 2 and Smart System, suitable for Performance Line and Cargo Line motors
• Manufactured from lightweight, durable aluminium with a black anodised finish
• Precise dimensions: outer diameter 42.5 mm, thickness 5 mm, weight 9 g
• Product reference EB112000JH, ensures assembly according to Bosch specifications

Use and compatibility

Specifically made for Bosch motors in the BDU4XX, BDU31YY and BDU37YY series, this locking ring securely fixes the spider and chainring on Performance Line and Cargo Line models and works with Bosch eBike System 2 and the Smart System.

Material and finish

Made from lightweight aluminium, the ring provides excellent corrosion resistance with minimal weight (9 g). Its black finish offers a discreet look and good protection against wear.

Technical dimensions

The precise dimensions (outer diameter 42.5 mm, thickness 5 mm) ensure correct alignment and tightening during installation, meeting Bosch tolerances for reliable operation of the motor-chainring assembly.

Reference and identifiers

Identified by product code EB112000JH, this locking ring is an original Bosch part designed to maintain mechanical integrity and safety of the crankset mounting on e-bikes equipped with the specified drives.