4000 Series XD variant features DBA’s non directional cross drilled and dimpled rotor design.
The XD finish provides additional cooling benefits above the HD spec, along with enhanced sports aesthetics.
The DBA mix of dimples and drilled holes provides enhanced rotor structural support above transitional cross drilled techniques.
Drilled rotor configurations are not recommended for heavy off-road or track day usage.
XD rotors are denoted by the suffix (XD) in 4000 Series part numbers
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These Discs are sold individually - not as pairs
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