Z4 Style 313 for my E53
 

I have a line on some style 313 wheels. I love the look and have not seen anything aftermarket that has the same look. They have the same bolt pattern, 5x120 and the same center bore, 72.6. The offset is almost the same. The only difference is that the 313's use 12mm lug bolts and the e53's are 14mm. I'm thinking that boring out the lug holes is possible, it's only 2mm difference.

Anyone have any experience doing something like this?

Its ironic, I read your post and thought back to when I was 18 and my buddy bought a set or Crager SS wheels from Jegs... they were for his car but they didn't fit, the holes were just off enough that they would not go on the car and when he complained to Jegs they didn't have anymore in that size, so they gave him his money back and let him keep the wheels. He and I shot straight over to Sears Hardware and grabbed a drill bit that was just a tiny bit bigger than the lug hole and "wallowed" them out until the fit on the car :D:D


It was kind of crazy actually now that I think about it, but at that point they were $9 wheels (the cost of the drill bit)... so who cared if it worked, but it did! Took a couple ounces of weight to balance for sure, but they DID work.


In your case you have a wheel that IS the same pattern but just a bit smaller bore hole. You should, with a ton of lubricating oil be able to buy a 14mm bit and drill through those, yes. It "should" work, it may take a bit more weight than a stock wheel would, but it should work.


That said, if it doesn't, you have to be prepared to potentially ruin the wheel - or, IF it's recoverable, be ready to take them to machine shop or wheel guy to have your error corrected, if you really want them.


But yes, you "should" be able to do it.

Those are a great looking wheel! Nice choice, please keep this updated if you go ahead with the mods and get them on.

I actually almost bought a set of those for my e61.

Thanks for the info and the great story. :thumbup: I figured it "should" work, but I really don't want to ruin a perfectly good set of wheels for a "should". I'm hoping there are others that may have done this and found it works or it doesn't so if it doesn't I don't trash a good set of wheels. :D

:thumbup:

You'll ruin these lovely wheels!

Best to set them on other BMW cars with same lugs... on other project cars!

I wouldn't trade nor sell these....;)

I really wouldn’t sweat it too much, we did ours by hand with a drill and it worked. If you have access to a drill press and can allow the bit to center itself, lock the wheel down and apply drilling oil, you will very likely have success.

What you don’t want to do is let the bit float and have one hole out a mill or two and the opposing hole out a mill or two and end up with wobble.

Lay the wheel on your bench, bring the bit down until the crown seats in the stud hole, lock the wheel in place and drill real slow, you “should” really be fine (they are aluminum, so your bit should easily cut through them).


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Those wheels are designed for small series with a lot lower axle weight. So the risk for wheel damage is much higher when installed on these tanks.

I was thinking that too, but was optimistic that a chunky 19" tire would mitigate some of that risk. At any rate, again, keep us updated. :thumbup:

I think these wheels have also been used on 750iL's. Not a "light" car. Something to consider though. I'll have to see if I can find out if they've got some kind of max vehicle weight. I'm thinking an 18" should have enough tire to absorb most of what I'd see around here. As bad as the roads can be, they're not terrible.