alloy wheel question.PCD what is it

[micaerin]

my nephew is after a new set of alloys for his mk1 TT ,the wheels he has found says they will fit his Audi but he has noticed they have a PCD of 5x112 and everywhere he looks says his mk1 TT is a 5x100.
thanks in advance

[andrewparker]

PCD stands for (pitch circle diameter), this is the diameter of a circle drawn through the center of your wheel's bolt holes. PCD is measured in millimetres and also indicates the number of studs or bolts the wheel will have. The most common fitment has 4 studs with a PCD of 100mm, hence the fitment 4x100.

[TurboTrev]

All the Mk1 TTs where I have seen the wheels, the PCD has always been 5x100.

[micaerin]

Will the 5x112 not fit then?

[VC]

You can make almost anything fit if you run adaptors

100 to 112 are readily available 

[sub39h]

Will the 5x112 not fit then?

PQ34 cars i.e. Mk4, 1st TT et al all have a PCD of 5x100

PQ35 cars i.e. Mk5, 2nd TT et al have a PCD of 5x112

As above you can get adapters to fit, but be careful of ET I think even the narrowest adapters are about 1 inch thick i.e. like running 25mm spacers