DBA 13-18 Ford Focus ST (w/320mm Front Rotor) Front 5000 Series Replacement Ring

This DBA 5000 Series replacement rotor ring is built with a high-carbon cast-iron friction surface, a key component for handling the heat generated during spirited driving. It's designed as a direct replacement for the 320mm front rotor found on performance models like the 2013-2018 Ford Focus ST, and also fits a range of other vehicles including the Mazda 3 and Volvo C30. The two-piece design allows for improved heat management and reduced unsprung weight compared to a traditional single-piece rotor.

The 5000 Series takes the performance benefits of DBA's 4000 Series and adds an aerospace-grade T6061-T6 aluminum hat. This aluminum hat not only cuts down on rotational mass, which can improve handling and acceleration, but it also helps the cast-iron ring expand uniformly as it heats up. This controlled expansion helps prevent rotor warping. The ring is secured to the hat using National Aerospace Standards (NAS) bolts and crimp nuts, ensuring a solid connection that can withstand demanding use on the street, track days, or in club racing.

This is a replacement ring only, meaning you can reuse your existing DBA 5000 Series aluminum hat if you're looking to refresh your rotors. This smooth-faced OE-style rotor is a popular choice for drivers who want the advanced thermal management and weight savings of the 5000 Series without the appearance of slots or cross-drilling.