jgt

The ones that stick out the most are probably 138's with a 20 offset off a rear wheel drive E60.
Post pics or check the wheels for offsets.

MixMasterMIke

The rear wheels part number is 6767538. I can't find it on realoem. I don't think they are 122's because they say 71/2J x 17 and the 122's are 8Jx17. I do know i have 138's in the front though. 138's are listed for rwd and not awd. Is this an issue? Sorry for the mixup, i can't edit the tread title.

NYC530XI

Any way to post pictures of the subject wheels? Would be best to see them to clarify the confusion. Also, look at this resource which lists pretty much every BMW wheel ever made:

http://www.kalach.easynet.be/

See if you find a match.

pjinca

You can verify which wheels you have here:
OEM wheels
This is a great forum, there is much more info available than you might think

jgt

The wheel is definitely a 138.

http://cgi.ebay.ca/2006-2009-BMW-525XI-528XI-530XI-535XI-AWD-OEM-WHEEL-RIM_W0QQitemZ160407331675QQcmdZViewItemQQptZMotors_Car_Truck_Parts_Accessories?hash=item255905a35b
The part #'s match. So it looks like its a 138 style rim with Xi offsets.

MixMasterMIke

Thanks for the help. I'm pretty sure they are both 138's but with different offsets. The part number for the front wheels only show for rwd e60's on realoem. They look to curl in more (less offset) and the rear ones i have are more flat. If it was alright, i was thinking of swapping the front's with the rears and see if it looked better with less offset in the rear. Then maybe for winter i can buy another pair so i have matching sets. I'll try to get a pic up in a few.

jgt

Sounds like a good idea in my book. I'd rather have the rear's tracking wider.

Try it out. You might be all set as long as they dont stick out so much that they'll hit the outer wheel well.

MixMasterMIke

Here's a pic. Bumper is getting repainted right now. I think the previous owner messed up one of the front wheels and the dealer put a new set of wheels and tires on it because they look new but put on rwd 138's instead of awd 138's. I assume this is ok for now since there doesn't seem to be any clearance issues and the tire sizes are the same.

MixMasterMIke

and another

NYC530XI

You're absolutely right. The front are ET20 RWD 138s, and the rears are ET43 AWD 138's.

Throw the rwd in the back and see how it looks. Because its a 7 and 1/2 inch rim, you may get away with a ET20 with no clearance/rubbing issues.

Good luck and enjoy the forums.