The good thing about using aluminium belled discs is when the discs are worn out, you can replace the rotors only. The aluminium parts can be reused.

This is for a pair of 308mm rotors only.

We strongly recommend to replace the fasteners while you change the rotors. The fasteners have gone through a lot of abuse (heat cycles, wet, may be even salt) so reusing may be a risk.

These rotors have the same PCD as the AP 308mm rotors, so you might also use them as a more cost effective replacement for the AP rotors.