Lock ring for mounting Bosch chain ring.
O-ring seal 1.270.014.024 additionally required.
Fits the Bosch Active Line, Performance Line, Performance Line CX electric bike systems.
User’s Manuals for Bosch Electric Bike Motor Systems
Lock ring for mounting the chain ring.
O-ring seal 1.270.014.024 additionally required (not included).
For more information, see the Bosch Performance Line (BDU2XX) User’s Manual for a more detailed look at the Bosch electric bike system.