Hi, have been thinking about getting the KAD magnesium alloys to go under some carbon fibre miglia archs for quite a while and am very close to going through with it. Just want to check a couple of things first.
Am I right in thinking miglia archs are generally 3.5" wide?
The offset on the wheels is ET-22, what does this mean, can I calculate how much he wheel will stick out from the hub from this?
I’m going to be getting 10x7 wheels, but because they only weigh 2.5kg each and I have alloy calipers, do I have to worry about the strain on the steering rack?
ET means ‘einpresstiefe’ which means insertion depth in german, so in that case the insertion depth (OFFSET) is 22mm, other more knowledgable members will be able to help you further
its measured from the surface of the wheel mount to the centre line of the outside rim, so if you were to cut a rim in half, the distance from the top of the centre of the rim inwards to the wheel mounting surface would give you the offset in milimeters
as for the first comment, if the offset is 22mm then the wheel will sit +22mm from the hub, which means that it would sit 7inches + 22mm from the hub
Incidentally Miglia arches are EXTREMELY wide, but the thing about them is that they can be cut down to whatever width you want, so can cover almost any width of wheel…
P.S. Guessworks, about that FAQ are you sure positive and negative offsets are the right way round? I always believed that inset (what metro wheels have) is negative offset rather than positive. Guess I was wrong
And also, Metro wheels DO fit fine on the front of disc braked cars. On the back, it depends on the wheel and tyre combo since they tend to run very close to the radius arm (my 12x5 pepperpots with 155/70 tyres rub a tiny bit, 3mm spacer would fix it, so would fitting 145/70 rubber probly). In the front, fitting metro wheels will give very neutral handling by the way, since the centre of the rim will be a lot closer to the balljoints than is the case with typical mini offsets. Also makes steering easier, and reduces bumpsteer.
I don’t know whether they have the center quick release, I’m getting them from a Miglia car, so technically I should be able to get miglia archs? Or do miglias have a wider track or spacers or something?
humm if either me or jammy didnt know that was there theres something wrong, i only know what i know because of my job, perhaps there should be an easier way to find the brilliant FAQ’s that the teams done?
miglia cars have a serious offset that apparently a road car would not withstand for too long, im sure theres another way of filling miglias without putting stress on anything though (runs and hides before spacers debate begins) :fear:
Yes you could, anything is possible, but this way you change your entire car. Therefor the figures on your documents don’t match anymore. Which will get you in trouble with MOT and you need a lot of things tested and done. So not worth the hassle unless you are looking at a pure race car.
I could go into depth as to what troubles you could get into by basically making your front wider (i.e. with spacers) but I think most of you know.
