What are the benefits of Ductile Iron Discs?
Almost all motorcycles now use Stainless Steel brake discs. This is for two reasons: 1. They are cheap to manufacture, 2. They look nice and shiny even when used in the wet! Ductile Iron (DI) discs will always give better performance than a Stainless Steel disc because of its superior frictional and heat transfer properties but cost more to manufacture and don’t look shiny for long if left in the rain! So if excellent brake performance is your prime objective then the only choice is a Ductile Iron disc. The PFM Brake System combines the high performance of a DI rotor with an innovative system for connecting the rotor to the carrier.
