4 Stud alloys

[mattymidtec]

Currently i have 4 stud alloys on my kit car. I was just wondering about the fitment of them and whether or not all 4 stud alloys are made with a standard distance between each stud, therefore making it easy to change the alloys currently on the car?

Any help appreciated.

Matty

[CorseChris]

No standard as such, just a relatively small range of popular/common sizes for PCD. Also important are rim width, offset and depending on hub type, probably the spigot bore as well.

Best bet is to do some googling on the topic. Try the usual suppliers as they normally have helpfull info pages.

[rdodger]

Your midtec has 4 stud ford which are 108 pcd & 63.4 bore. I can't remember what the offset was. Something like ET24 I think.

[ugg10]

She short answer is nope.

The longer answer is wheels have four basic measurements -

Number of studs, Pitch Centre Diameter (PCD), offset and centre boss diameter.

Studs = 4 in your case
PCD = on a four stud hub measure across the diagonal two bolts (centre to centre)
http://www.midtec.nl/ suggestes that the front are cortina and the rear sierra hubs so
http://www.carlsalter.com/wheel_fitments.html says cortina and sierra are 4x108mm
Centre boss - this is the diameter of the raised round bit in the centre and diametre of the hole in the centre of the wheel - this is 63.8mm for sierra and cortina
Offset - a bit harder to explain but is the distance from the centre line of the wheel to the plane of the hub - sierra is 35-38mm - diagram here - http://www.tirerack.com/wheels/tech/techpage.jsp?t... - this is normally embossed on the wheels somewhere

http://www.willtheyfit.com/ is a good site for comparing different wheel and tyre fitments.

So I guess any alloy with 4x108mm, a 63.8mm boss (you can get reducers if the wheel hole is bigger than the boss), and an offset similar to the 35-38mm based on a sierra wheel (6" I think) would work. I had sierra hubs on my Fury and fitted 15x7 citroen saxo wheels and also 13x5.5 Cpari laser 4 spokes both worked pretty well.