The DBA 5000 Series drilled front ring for 2018 BMW 230i applications is a two-piece replacement ring with a non-directional cross-drilled and dimpled XD design. The XD finish offers improved cooling benefits compared with HD variants and contributes a sportier appearance to the rotor assembly. Provided for use with compatible hats and NAS hardware, this ring helps manage heat for spirited driving demands.
DBA 2018 BMW 230I Front 5000 Series Drilled Ring