Hi,

Can anyone tell me whats the PCD and the offset for the wheels on a standard Locost? Also, what the hell do they mean?

Cheers!

Im probably wrong but PCD is the distance between centres of the stud holes, Offset is the distance between the inside face (face that mates with hub) and the inside edge of the wheel.

Pitch circle diameter
the wheel bolts lay on a circle called the pitch, whose diameter is the pitch circle diameter

the pcd diameter for most ford wheels or at least sierras and cortinas is 100 mm with 4 bolts- 4x100 PCD

[Edited on 14/8/04 by liam.mccaffrey]

Offset is the distance between the center of the rim and the mounting face e.g. with zero offset the middle of the rim is exactly inline with the drive flange. With larger offsets the wheel moves further inward.

Have a look at http://www.domsat.co.uk/pages/wheels.htm

[Edited on 14/8/04 by MikeRJ]

Hmm!!

Always thought the PCD was 108mm, could be wrong though.

Mick

i am sure its 100 for ford, i have daewoo wheels which are 108 and they are too big for my cortina uprights

i thought it was 108 for ford

doesn't matter though, just get my wheels of another 4 stud ford

[Edited on 14/8/04 by Lars]

As far as I know, Ford have never used 100mm PCD on anything, everything with 4 studs is 108mm


100mm is standard european, VW,Vaux (Opel), Renault etc

98mm is Italian

mark you are absolutely correct i had my head ina muddle its my daewoo hubs that are 100 and all the ford stuff i have is 108

sorry guys

Yes, I can confirm that Sierra's and Escorts (and probably most other 4 stud fords) are 108mm PCD. Several Peugeot cars also use this PCD but have a slightly larger centre bore diameter (centre bore refers to the large hole where the hub nut is sometimes visible)

As for offset, the above description isn't quite accurate as the offset is actually the distance between the "centre" of the wheel and the hub mounting surface, not the edge of the wheel. This can be either positive or negative.

There is a list of fitments and a very good description of offset on this website

Cheers,
Craig.

Ok think i get it now, cheers everyone!

quote:

---

Model: Fiesta, Ka, Puma, Escort, Orion, Focus, Sierra, Mondeo, Scorpio 94>

PCD: 4 x 108

Offset: 35...38

C/Bore: 63.3

---

Saab 4 studs are also 108mm, not sure about the centre bore though

Stuart, maybe, maybe not. If when you mentioned standard locost you meant one with a Escort back axle then yes, with wheels having a large offset, you run into clearance problems between the tyre & trailing arms. The book was written using escort wheels, about 126mm rim width, with 19mm offset, which gives a backspace of approx 82mm. You mention a 40mm offset, what is your rim width? Its all dependant on that, but with a 152mm rim width( 6" ) and a 40mm offset. you get a 116mm backspace, so to maintain the same clearance you`d need an approx 35mm spacer. It has been done ,not sure if I`d think it was desirable, others might have an opinion. HTH Steve.

[Edited on 14/8/04 by Steve Hnz]

Aah I see!

So the ones I had seen at 16 x 7 are going to be far too big. I guess I'll just look for some once the car has arrived!

Cheers and thanks for all the info,
Stu