The DBA 5000 Series composite two-piece replacement rotor for 2011–2012 BMW 1M (E82) pairs high-carbon cast-iron rings with T6061-T6 aluminum hats to reduce unsprung weight and improve heat management. NAS-spec bolts and crimp nuts secure the assembly. Available as complete assemblies or as separate hats and replacement rings, the 5000 Series suits high-performance street use, track days and rally applications.
DBA 11-12 BMW 1M (E82 )Replacement 5000 Series Standard Rotor