WHEEL ADAPTERS 74.1 HUB TO 72.56

[mihalkog]

When I tried to install some older Style 128 wheels on my 2011 X5, I discovered that the E70 X5 has 74.1 hubs and my spare set of wheels has 72.56 hubs. I checked into having the wheel hubs machined to 74.1, but decided not to go down that route. Then I found these hub adapters online and just ordered them.
I will keep you posted how things work out.

Wheel Spacers, Adapters & Spacer Packages | Mortorsport Hardware#

[ECS Tuning]

H&R has some quality adapters for the X5a available. They come in 15mm (LINK) as well as 20mm (LINK), have chafing which allows proper seating on of the wheel on the hub. The 20mm adapter uses special lug bolts which allow you to bolt the adapter to the hub then bolt the wheel to the spacer. The 15mm on the other hand works just like a standard spacer but with a 72.5mm hub extension instead of a 74mm hub extension.

Can't wait to see the 128s on your X!

[Cisc0]

In case you're wondering how its going to look:

http://www.xoutpost.com/attachments/...x5-rm666-3.jpg

[mihalkog]

Now that looks cool, CiscO.

[brian5]

mihalkog & ECS Tuning,

Neither of those hub adapters will not work on the E70 X5. They are for the E39 5-series. There are no hubs available that will do that adaption for the E70 X5.

How do I know? I bought the H&R adapters from ECS Tuning and had to return them. Had multiple email exchange with ECS Tuning on this issue.

I have previously posted that the only way that you can use these 72.x mm wheels on the E70 X5 is by having them bored out. Which I did do. Those are X6 wheels on my car right now (that had to be bored out).

[mihalkog]

I did not purchase H&R adapters. We will find out for sure next week.

[ECS Tuning]

Originally Posted by brian5

mihalkog & ECS Tuning,

Neither of those hub adapters will not work on the E70 X5. They are for the E39 5-series. There are no hubs available that will do that adaption for the E70 X5.

How do I know? I bought the H&R adapters from ECS Tuning and had to return them. Had multiple email exchange with ECS Tuning on this issue.

I have previously posted that the only way that you can use these 72.x mm wheels on the E70 X5 is by having them bored out. Which I did do. Those are X6 wheels on my car right now (that had to be bored out).

Per H&R they are the correct ones for the E70. LINK to H&R fitment guide. That being said, I just noted H&R also says they fit both the E70 and E39. Both the E70 and the E39 use a M12X1.5 bolt size and pitch bolt. Both have 74.1mm hubs. In theory they should have fit considering there are very very few times H&Rs guide is incorrect.

[mihalkog]

The adapters I ordered are not H&R, they are Motorsport Hardware. They are only 10mm. My research also indicated that the E39 and E70 have the same hub and bolt pattern. I will provide an update when I'll install the adapters next week.

[brian5]

mihalkog & ECS Tuning,

I'm sure I've posted info on this in the past.

Basically, the hub adapter may work but I found out the difficult way (by removing the wheel) that the bolts are not the right thickness or profile. The X5 E70 needs 14mm thick bolts. The bolts that came in the TRAK+ package are about 2mm thinner than that. Also the head part of the bolt had too high a profile -- it needs to be a lower profile head.

ECS Tuning was not able to resolve this for me in Mar 2012. So unless there are new bolts included in the H&R TRAK+ package, it will still only work for the 5-series.

[mihalkog]

brian5,

while I understand your experience, I did not order anything from H&R.

The 10mm 74.1 hub to 72.56 hub adapter kit I purchased from Motorsport Hardware comes with M14x1.25 bolts.