Rear VW IRS four lug rotor for rear disc brake conversion. This is a heavy duty rotor used for rear disc conversions on dune buggies, woods buggies and VW beetles. This rotor has a strong gusseted top hat. Bolt pattern for this rear brake rotor is stock VW 4 x 130. These VW rear brake rotors are for independent rear suspension vehicles only and will not fit swing axle rear ends.