PCD stands for Pitch Circle Diameter (PCD) and is the diameter of a circle drawn through the centre of your wheel's bolt holes. P.C.D. is measured in millimeters and also indicates the number of studs or bolts the wheel will have.
Firstly, you need to know the PCD dictates how the wheel bolt holes line up so it is important that this is correct. A PCD of 4x100 meaning 4 bolt holes drilled through the centre of a 100mm circle. Another common PCD is 5x114.3 meaning 5 bolt holes drilled through the centre of a 114.3mm circle. If this is different on your chosen wheels you won't be able to bolt them on! However, we supply many models blank. This means that for a small extra charge your chosen wheels can be drilled to fit your car.
Most European cars with 4 studs have a PCD of 100mm (Vauxhall, Volkswagen, Honda & early BMW), Fords & Peugeots have a PCD of 108mm. Also consider whether your car has metric or imperial hubs. Real Minis & MGs have a PCD of 4" which is pretty close to 100mm but not exact so you couldn't swap one with the other.
Check the hole in the centre! Many aftermarket alloys have a plastic ring in the centre to take up the gap. Measure the hole in the centre of your vehicles own wheel and compare it to your chosen alloys.
