Hi having measured my brake thickness today will have to renew soon (near service leve;) having searched found PFM DI discs (ductile iron) now on the imbwr site found though emails that theres a mix match of reviews on them though no explanation.
Wondered if any one else used them and are they better or the same?
pete

One thing I have heard is they can look unsightly due to rust.
Regards,
Jeremy