Alloy Wheel Fitment

All aspects of tuning,modification and repairs to the BX 16valve.
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Toddman
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Alloy Wheel Fitment

Post by Toddman »

Here is some usefull information about the alloy wheel fitment on the BX 16v.

Standard Fitment - Speedline 6J x 14 (195/60 VR14)
P.C.D - 4 x 108
Offset (E.T.) - 15
Centre Bore - 65


General Info -
PCD stands for 'pitch circle diametre' and is the diametre 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.

Image


Offset is often referred to as E.T. which stands for EinpressTieffe in German.

Image Image


The 'centerbore' of an alloy wheel is the size of the hole at the back of the wheel which the 'hub' fits into. To help the wheels to seat properly this hole needs to be an exact match to the size of the hub.
Most modern wheels are what's called 'hub-centric' - this means that the hub which protrudes from your car [and mates with the equivalent sized hole at the back of your wheel] is 'load bearing'. All the studs or bolts do therefore is hold the wheel onto the hub
Last edited by Toddman on Sun Feb 15, 2009 12:49 pm, edited 1 time in total.
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Timmo
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Post by Timmo »

it is also worth noting that to reduce the offset of the rim say an et45 fitting a spacer of 20mm will reduce the offset to an et25,

most Citroen / peugeot 4 stud wheels are the same pcd with offsets varying from et12-25

also worth noting that ford rims are also 4x108 pcd and typically et35 and will fit with the use of 15 - 20mm spacers! (central bore of the ford wheel is smaller but with the use of the spacer this is not an issue, also you can get ford to citroen/peugeot spacers which have a smaller spigot ring on the outer edge to center the wheel!)
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Mike P
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Post by Mike P »

Facts on fitting aftermarket alloys and tyres, from personnel experience:

17" alloys do fit under 16v arches. Ford wheels with ET35 reduced down with a 20mm spacer to ET15 will fit, as Timmo's comments.
205/40/17 tyres can be used on the rears, 215/40/17 will fit on the fronts.

Gutmann 7" wide wheels fit. 205/50/15 tyres required.

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Mike E (uk)
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Post by Mike E (uk) »

"Standard Fitment - Speedline 6J x 14 (185/60 R14) "

shouldn't that be 195/60 VR14 ?

Mike
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tyres

Post by Toddman »

Mike E (uk) wrote:"Standard Fitment - Speedline 6J x 14 (185/60 R14) "

shouldn't that be 195/60 VR14 ?

Mike
Yes it should and now in fact does :D
Thanks Mike the size was a typo but I did miss out the V rating.

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Post by soupapes »

Anyone already tried the 405 mi16 15 wheels in the BX with 195 tires? should it feet fine?
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Post by djoptix »

I used to have a set but never fitted them to the BX. However, I've seen photos of them on 16vs so they will definitely fit. I think with 205s they will fit with an arch trim at the rear, with 195s they will fit with no modification. Provided your rear arm bearings are in better shape than mine :D
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Post by soupapes »

djoptix wrote:I used to have a set but never fitted them to the BX. However, I've seen photos of them on 16vs so they will definitely fit. I think with 205s they will fit with an arch trim at the rear, with 195s they will fit with no modification. Provided your rear arm bearings are in better shape than mine :D
I bought a set, but the mi16 wheels have 29mm offset, different from the original BX wheels with 15mm, so i'm going to have to use some 15mm wheel spacers to correct the offset.

Here's how they look in BX:
Image
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Timmo
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Post by Timmo »

bx is 15-22 so you'd be fine with a 10mm spacer!

they look quite nice, infact very nice on the bx dont they!
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Post by douglas851 »

Do any of the 15" wheels from the Xantia fit without the need for spacers?

The reason I ask is that there seems to be a much better selection of tyres for 15" wheels than 14".

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Post by jayboy »

Should do. I've seen BX's fitted with both the normal 5 spoke (VSX type '93 to'97) and Activa alloys. Also the steel wheels fit, but make sure you get them with an ET of 18mm as the late models have an ET of 8mm and you can't fitthem in the rear arches!
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Post by mSx »

It would be possible to use a 7x17 rim with ET15?
Thanks in advance and greetings.
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Mike P
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Post by Mike P »

Hi ,

As per your PM question:

Yes, that size wheel will fit under 16V arches.

You will need 205 wide tyres.

A Ford wheel with ET35 will be ok with a 20mm spacer.

On the fronts, you may have to cable tie the handbrake cable out of the way.

On the rears, the metal inner lip of the arch may need grinding back so that it's flush with the plastic outer and watch for clearance on the trailing arm bolt head.

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Post by Mike P »

This is my old car. 17" x 7" wheels, ET35 with a 20mm spacer. 215 wide tyres on the front and 205 wide on the rear:

Image

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Post by mSx »

Thank you very much Mike, my calculations told me I was right, but preferred to be sure.
I promise photos when mounting the tires, I'm thinking Speedline Corse 2110, or Compomotive MO5, always in white.
Thanks again for dispelling doubts, greetings and sorry for my English by google translator: P
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