[reginijr1]

Hey all, I have my cup 2's from my 18 M3 cs 265 front 285 rear with my OEM M3cs wheels. My question is can I use them on my g80 for track day? Pls advise

[AhsanU]

What exact size are the Cup 2's? I'm sure the aspect ratio is correct but I'd like to know just for reference.

If you have 265/35/19 and 285/30/20 Cup 2's, then they'll fit your stock wheels. You're not straying too far from the original OD of the stock size on the front (~1% or so) so you should be more than fine on your xDrive car.

[reginijr1]

Originally Posted by AhsanU

What exact size are the Cup 2's? I'm sure the aspect ratio is correct but I'd like to know just for reference.

If you have 265/35/19 and 285/30/20 Cup 2's, then they'll fit your stock wheels. You're not straying too far from the original OD of the stock size on the front (~1% or so) so you should be more than fine on your xDrive car.

Thanks, those are the sizes you mentioned and I want to use my M3cs 763m wheels also. The fronts are off from 275 to 265 and the rears are the same

[AriM3G80]

Originally Posted by reginijr1

Thanks, those are the sizes you mentioned and I want to use my M3cs 763m wheels also. The fronts are off from 275 to 265 and the rears are the same

The new G8X switched to 5x112 bolt pattern. The previous gen is at 5x120 if I'm right!

[reginijr1]

So that's a no go?

[AhsanU]

Originally Posted by reginijr1

Thanks, those are the sizes you mentioned and I want to use my M3cs 763m wheels also. The fronts are off from 275 to 265 and the rears are the same

Originally Posted by AriM3G80

The new G8X switched to 5x112 bolt pattern. The previous gen is at 5x120 if I'm right!

This is correct - the bolt pattern has changed for the G8X and as a result will not fit. If you're absolutely keen on running them, you can get a bolt conversion.

The weight difference between the 763M and the 826M wheels are about 3~4 lbs each which is a decent amount since it's unsprung mass, but I'd say just swap the tyres and enjoy the track day.