Second opinions on wheel fitments
#1
Second opinions on wheel fitments
I've been thinking about getting a set of aftermarket wheels that won't break the bank for a while (and avoid dealing with things like hubcentric spacers, PCD adapters, etc), and settled on some Milanni Clutch 475 rims. I'm pretty sure these will work, just wanted second thoughts on a couple aspects before spending money and having even more issues. Specifically looking at p/n 475-8812GM20
First, bore. Milanni lists bore at 74.1mm, if I remember right some sites list Jag OEM bore at 73.9... Will this work OK, without causing vibrations from being uncentered by .1-.2mm? Will I have to use some shim stock to take up that .1mm gap? I've been having nagging vibration issues for a while, so trying to dot my i's and cross my t's here.
Second, offset. There's two offsets available, +38 and +20. I believe OEM offset was +33 on an 8in wide rim. In my head +38 makes more sense to keep everything "factory spec"; the Clutch's are 8.5" wide, so offsetting the rim by an extra 0.25in ~ 6 mm, almost to that +38 spec, would keep the tire "centerline" nearly the same as factory. The rims that came on my car had some unknown crazy low offset, which negatively affected steering, especially at low speeds. However, wheel sites only list the +20mm as being compatible with the x308's. If that offset wouldn't cause issues (prefer firsthand experience on this one), I'd rather go with the +20. They seem to be easier to find, and who knows, maybe one day I'll go for the Brembo retrofit...
First, bore. Milanni lists bore at 74.1mm, if I remember right some sites list Jag OEM bore at 73.9... Will this work OK, without causing vibrations from being uncentered by .1-.2mm? Will I have to use some shim stock to take up that .1mm gap? I've been having nagging vibration issues for a while, so trying to dot my i's and cross my t's here.
Second, offset. There's two offsets available, +38 and +20. I believe OEM offset was +33 on an 8in wide rim. In my head +38 makes more sense to keep everything "factory spec"; the Clutch's are 8.5" wide, so offsetting the rim by an extra 0.25in ~ 6 mm, almost to that +38 spec, would keep the tire "centerline" nearly the same as factory. The rims that came on my car had some unknown crazy low offset, which negatively affected steering, especially at low speeds. However, wheel sites only list the +20mm as being compatible with the x308's. If that offset wouldn't cause issues (prefer firsthand experience on this one), I'd rather go with the +20. They seem to be easier to find, and who knows, maybe one day I'll go for the Brembo retrofit...
#2
First, bore. Milanni lists bore at 74.1mm, if I remember right some sites list Jag OEM bore at 73.9... Will this work OK, without causing vibrations from being uncentered by .1-.2mm? Will I have to use some shim stock to take up that .1mm gap? I've been having nagging vibration issues for a while, so trying to dot my i's and cross my t's here.
The following users liked this post:
nilanium (06-19-2019)
#3
#4
At 33 offset and 8" width, the wheel outer edge is at certain position in relation to the body (the wheel arch).
At 33 offset and 8.5" width, the wheel outer edge will be 0.25" (6.35 mm) further out.
At 28 offset and 8.5" width, the wheel outer edge will be 6.35 mm + 5 mm (total 11.35 mm) further out.
At 20 offset and 8.5" width, the wheel outer edge will be 6.35 mm + 13 mm (total 19.35 mm) further out.
If you want to maintain about the same position of the wheel outer edge in relation to the body (the wheel arch) with 8.5" wide wheels, you will need 38 offset (39.35 to be exact),
The following users liked this post:
nilanium (06-20-2019)
#5
And this is why I asked for my math to be double checked thought about this a bunch before, and got it right the first time, then come home after a long day and get all my math backwards.
I'll try to get one of the +38 offset wheels and double check fitment before ordering the rest of the set. Will check back in once that happens, may be a bit though, other priorities, bills to pay etc.
I'll try to get one of the +38 offset wheels and double check fitment before ordering the rest of the set. Will check back in once that happens, may be a bit though, other priorities, bills to pay etc.
#6
Thread
Thread Starter
Forum
Replies
Last Post
lc3566
XJ XJ6 / XJ8 / XJR ( X350 & X358 )
11
02-17-2022 11:31 AM
vossen wheels
XF and XFR ( X250 )
2
12-26-2008 08:00 PM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)