[pistolpete559]

Has anyone been running a staggered setup with xDrive on their F10 for quite some with any issues.

[cipher5]

Originally Posted by pistolpete559

Has anyone been running a staggered setup with xDrive on their F10 for quite some with any issues.

You can run a staggered setup, BMW even issues some xdrive cars with a staggered setup, especially if a customer requests it. As long as the overall rolling diameter of both front and back are within about 1%, there is no issues caused to the system.

[remmib]

It shouldn't be more than 1% difference in diameter front and rear. So the tire profile can't be the same front and rear with staggered tires.

[VMRWheels]

Originally Posted by remmib

It shouldn't be more than 1% difference in diameter front and rear. So the tire profile can't be the same front and rear with staggered tires.

+1

We set up hundreds of XDrive customers every year with staggered options. If you are unsure in your calculations of rolling diameter, the link below is a useful tool

http://www.miata.net/garage/tirecalc.html

[chiasl]

Originally Posted by remmib

It shouldn't be more than 1% difference in diameter front and rear. So the tire profile can't be the same front and rear with staggered tires.

I am on 245/40/19 front and rear. I am thinking of going 20" staggered. For rear, why does BMW spec 275/30/20 (-0.8%) whereas 285/30/20 (0.1%) seems to be a better fit?

[twelve535i]

Originally Posted by chiasl

I am on 245/40/19 front and rear. I am thinking of going 20" staggered. For rear, why does BMW spec 275/30/20 (-0.8%) whereas 285/30/20 (0.1%) seems to be a better fit?

I ran 245/35/20 and 285/30/20 without issues

[slownfast]

Originally Posted by twelve535i

I ran 245/35/20 and 285/30/20 without issues

+1, running this setup as well

[pistolpete559]

Originally Posted by twelve535i

I ran 245/35/20 and 285/30/20 without issues

How long have you ran this without any issues

[pistolpete559]

Originally Posted by slownfast

+1, running this setup as well

How long have you ran this setup for

[slownfast]

Originally Posted by pistolpete559

How long have you ran this setup for

1 year

[valbmw]

In Europe the M Sport cars come staggered from the factory, with 18" BMW 350M wheels: F 18x8" ET30 (36117842650), R 18x9" ET44 (36117842651).

I have no problems on my xDrive neither with my stock staggered 18" used for winter (3 years), nor with 20x8.5 and 20x10 summer setup (2 years). Also people have been staggering xDrive cars on the E9X platform for years without issues. That was properly said above about getting the right tire sizes, so that the overall diameter of the front and rear wheels match up as close as possible.

The best fit for the stock 18" is: F 245/45, R 275/40. For the 20" there are two good options: F 245/35, R 285/30 and F 245/35 R 275/30. Most owners use the first one, while the second one is normally taken to have the rear tire stretched a little, to avoid rubbing with aggressive offset.

[Boss330]

Originally Posted by cipher5

You can run a staggered setup, BMW even issues some xdrive cars with a staggered setup, especially if a customer requests it. As long as the overall rolling diameter of both front and back are within about 10%, there is no issues caused to the system. So for example, if you have a 19" wheel that is staggered... fronts for argument's sake would be 245/40/19 and rears would be 275/40/19 or even 275/35/19 (though that's about 12%) you would be fine.

Having a 10-12% difference between circumference between front and rear tires is a great way to toast your driveline on a AWD car... The difference in rpm between the front and rear parts of the drivetrain needs to be as close to Zero as possible. With a large difference the clutches/viscous couplings will burn up pretty badly after a while...

As mentioned by others, not much more than 1%

And you definitely can't run a staggered setup with the same profile (aspect ratio) front and rear!

[Errowen]

For reference I have a 2011 European delivery 535i xDrive M Sport with OE staggered 19 inch setup:

Front: 8.5X19, ET 33, 245/40R19
Rear: 9X19, ET 44, 275/35R19

Others have stated and I agree that it is critical to maintain OE tire diameter relationship front to rear with 4 driven wheels -- not based on experience with this car (it is my first xDrive) but (because I live in Canada) several other 4WD and AWD vehicles.

Even with a square setup in OE sizes, significant problems can arise simply from the differential wear between front and rear tires. An AWD Jeep Grand Cherokee I had, and loved, wouldn't turn into a parking space after an hour of driving because of the torque build-up, unless I could find some snow or other slippery surface to drive through to release it, and once parked, the vehicle would do a massive "whump" after a few minutes -- one of the wheels breaking loose as the tires cooled. I believe this contributed to a prematurely mushy auto trans in an otherwise fabulous winter vehicle.

[cipher5]

Don't listen to that old me, I'm was still learning then.
valbmw and remmib are the experts, I recently was corrected by them.

[08msportx3]

I just put on 373m wheels with 285-30-20/255-35-20 on my Xdive and put 12mm spacers in the rear and it looks great . It's same tire setup the 13/14 Jaguar XF has as they have the same drivetrain as us so on that note I think I good to go

[kalyanverma]

I suggest use the same tires on all four corners with different rim widths for front and rear. Most tires are designed to fit a range of rim widths.

Assuming that your 2011 535i xDrive comes with 245/45R18 stock tires, the best upgrade would be 275/30R20 which is a -0.69% diameter variance. This will make sure that you wont mess up the rotation metrics and the tacho.
Ref: http://www.1010tires.com/Tools/Tire-Size-Calculator/

Also, the max recommended rim width on F10s is 8.5in. Check with an expert before ordering. You might have to do some mods to the fenders if you are going beyond 8.5in.

[valbmw]

The xDrive has a default front-to-rear torque split of 40/60 percent. Therefore the M Sport staggered setups 245-275 245-285 (as described above) help to prevent the rear tires from much faster wear. The more engine power you have under your feet, the faster the rears will be gone.

As for the rim widths, there are many setups shown and discussed on the forums where the fronts are up to 9.5" and the rears are up to 11" with no fender issues at all because everything is about proper offsets.

Also the lowered cars (KW or sport springs) can afford slightly more aggressive offsets because the suspension cambers when lowered.

[Dan1416]

Been running 245/35/21 and 285/30/21 on my XDrive 528 for the last 2 years with ZERO issues. Before that I was on 245/35/20 and 285/30/20. I love both setups.

[hurst01]

Originally Posted by kalyanverma

I suggest use the same tires on all four corners with different rim widths for front and rear. Most tires are designed to fit a range of rim widths.

Assuming that your 2011 535i xDrive comes with 245/45R18 stock tires, the best upgrade would be 275/30R20 which is a -0.69% diameter variance. This will make sure that you wont mess up the rotation metrics and the tacho.
Ref: http://www.1010tires.com/Tools/Tire-Size-Calculator/

Also, the max recommended rim width on F10s is 8.5in. Check with an expert before ordering. You might have to do some mods to the fenders if you are going beyond 8.5in.

All of this depends on the wheel width. On my 2011 P10 535i XDrive I run 19X9 in the front and 19X10 on the rear. Front tire sizes are 245/40-19 (factory stock) and rear is 285/35-19 rear. They are .7% difference in overall diameter.
Ed

[Monocero]

Is there a size difference on the 528ix between the front and the back?