Bosch Lock Ring (BDU4XX, BDU37YY, BDU31YY, BDU38YY)
9,90 €
Original Bosch lock ring for mounting the chainring spider. Fits BDU4XX, BDU37YY, BDU31YY and BDU38YY drive units. Made of aluminium. O-ring 1270016119 is additionally required.
9,90 €
Original Bosch lock ring for mounting the chainring spider. Fits BDU4XX, BDU37YY, BDU31YY and BDU38YY drive units. Made of aluminium. O-ring 1270016119 is additionally required.
The Bosch lock ring EB112000JH is an original spare part for Bosch e-bike drive units. The lock ring is used to mount the spider when the chainring is fitted. The part is intended for the Bosch eBike System 2 and Smart System.
The lock ring fits the drive units BDU4XX, BDU37YY, BDU31YY and BDU38YY. The item number is EB112000JH, with the alternative item number 2124196. Check your bike's drive unit type before ordering to make sure you choose the right part.
It is good practice to replace the lock ring with a new one whenever the chainring fixing is opened during service. The O-ring 1270016119 is also required for installation and is ordered separately. The package contains one lock ring.
The part helps keep the chainring secured to the drive unit. Chainring service can be done yourself with suitable tools or by a bike workshop. If you are unsure about compatibility or installation, ask a service shop for advice.
