[gamechanger]

Hi folks

I tried searching in the Sticky section as well as searching but I was not able to find the answer.

What's the center bore size for 2013 wheels or BMW wheels in general

Thanks

Max

[bobblehead]

all 72.56

[gamechanger]

Originally Posted by bobblehead

all 72.56

Thank you

[remmib]

Originally Posted by bobblehead

all 72.56

Well almost all, a few are 74.1 like the X5 E70, the X6 E71 (front wheels only) and the old 5 series E39.

[tiltmode43]

Originally Posted by remmib

Well almost all, a few are 74.1 like the X5 E70, the X6 E71 (front wheels only) and the old 5 series E39.

We have a winner!

[bluemark81]

Does the bore on a replacement rim have to be exactly the same as the OEM rim?

[ApexWheels]

Originally Posted by bluemark81

Does the bore on a replacement rim have to be exactly the same as the OEM rim?

Not necessarily, but ideally yes.

If you purchase a replacement rim with a smaller diameter center bore it will have to be bored out by a machine shop.

If you purchase a replacement rim with a larger diameter you must purchase hub-centric rings (plastic or metal) and install them inside the hub bore of the wheel. Hub-centric rings come in many sizes, but make sure to purchase the correct size for your wheel/car (i.e. if your hub bore is 72.56mm and you purchase wheels with a 74mm hub bore, you must install 74mm to 72.56mm hub-centric rings). If you do not install hub-centric rings, you will likely experience steering wheel shake/vibration at cruising speed due to the wheel not being perfectly centered.

The safest method is to purchase wheels with the correct hub bore as they are a direct fit that won't need any machining or rings. Hope this helps!

[lo_xyooj]

I had to bump this old thread. Thanks Apex for confirming what I need to buy...Winter mode in full effect... Thank goodness I found this thread to confirm buying the right ring before mounting the wheels..

[AlBmw0430]

New to this forum, I have a 2019 430xi gran coupe and was looking to get info on the hub bore size for my car. I tried fitting 19 inch M wheels from a 2020 M330 and the hub was too small. I would appreciate some feedback.

[freakystyly]

Originally Posted by AlBmw0430

New to this forum, I have a 2019 430xi gran coupe and was looking to get info on the hub bore size for my car. I tried fitting 19 inch M wheels from a 2020 M330 and the hub was too small. I would appreciate some feedback.

Newer models (G chassis) have different bolt patterns and hub sizes. 5x112 and 66.5mm

[1qwer1]

Can anyone tell me what the difference is in handling between 16", 17" and 18" rims? Is it worth investing in 18" wheels? I currently have 16" on my F31N.

[SD Convert]

Originally Posted by 1qwer1

Can anyone tell me what the difference is in handling between 16", 17" and 18" rims? Is it worth investing in 18" wheels? I currently have 16" on my F31N.

There are two things you get from the larger rims.

1. Additional space inside the barrel for larger diameter brakes.
2. Shorter sidewalls while maintaining the same overall tire height.

All other parameters being the same, a shorter sidewall will be more responsive but give a harsher ride.

Also, according to this article, the rim width should be about 1/2" wider than the tread width (not the section width) to provide optimum handling.

[1qwer1]

Originally Posted by SD Convert

There are two things you get from the larger rims.

1. Additional space inside the barrel for larger diameter brakes.
2. Shorter sidewalls while maintaining the same overall tire height.

All other parameters being the same, a shorter sidewall will be more responsive but give a harsher ride.

Also, according to this article, the rim width should be about 1/2" wider than the tread width (not the section width) to provide optimum handling.

Thank you

[Onizukachan]

Originally Posted by 1qwer1

Can anyone tell me what the difference is in handling between 16", 17" and 18" rims? Is it worth investing in 18" wheels? I currently have 16" on my F31N.

We started with 17” here and 18” was msport and maybe sport sizing.
I’m runn8ng 19” amd they ride better than the factory 18”. You can’t hardly buy a 16” non truck tire anymore and 17s are getting rarer.

If you upgrade brakes to 340mm brembo (highly recommended, 312mm are completely inadequate for 80+kph city streets on a 3800 lb car) , 18” is minimum. 19” lets you run 370mm brakes up front.

As a result I’d suggest at least 18” if changing.

[SD Convert]

Originally Posted by Onizukachan

If you upgrade brakes to 340mm brembo (highly recommended, 312mm are completely inadequate for 80+kph city streets on a 3800 lb car) , 18” is minimum. 19” lets you run 370mm brakes up front.

The 370mm fronts will fit in a factory 18" wheel. If you're going to the 380mm, they'll probably fit with the adapters from Kevin, but not from SLG (SLG adds a few extra mm to handle some of the slightly oversize aftermarket rotors).

For the 400mm front rotors, or SLG adapters for 380mm rotors, you'll need 19" wheels.

[1qwer1]

Thank you for your help.