You can find all the accessories you need from the best brands at Escapa.
The Galfer Postmount +20mm Adapterallows you to install a larger-diameter rotor.
They are also compatible with the new 223mm oversized Galfer rotors, which have been specially developed for E-Bikes.
Compatibility of the Galfer SB002 +20mm Adapter
Fork 160 > 180mm
Fork 180 > 200mm
Fork 203 > 223mm
Frame 160 > 180mm
Frame 180 > 200mm
Weight: 22 g