Campagnolo 13x Retrofit Wheel Upgrade kits provide you with the required bearings so you can convert your existing Campagnolo disc brake wheels to be compatible with 13x groupsets.
Compatibility:
Select the Cup and Cone Version (AC21-N3WRFCS) for:

Bora WTO Disc
Bora One Disc
Shamal Ultra (Aluminium) Disc
Zonda Disc

Select the Cartridge Bearing version (AC21-N3WRFCC) for:

Scirocco Disc wheels