BOSCH Lockring for eBike chainring Spider BDU4XX | BDU37YY
Original BOSCH lockring for mounting the Spider with mounted chainring.
Technical data:
Material: Aluminum
System compatibility: Bosch eBike System 2, The smart system
Spider compatibility: BDU4XX, BDU37YY
Outer diameter: 42.5 mm
Thickness: 5 mm
