[DaveDBD]

On 5 series with staggered tires, are all four rims the same size?

[nacs]

550e Ordering guide shows 20 x 8.5 (Front) and 20 x10 (Rear) or 21 x 8.5 (Front) and 21 x 9.5 (Rear). There is no difference in rim width for the 2 20in options.

[AiredaleDad]

Originally Posted by DaveDBD

On 5 series with staggered tires, are all four rims the same size?

The name "Staggered" implies they are NOT the same size. They are all 20" or 21", but the rear rims/tires are wider. A staggered wheel set up is designed to reduce oversteer by removing front grip and adding it to the back. A understeering car (pushing) is easier to control than one that oversteers (loose). You cannot rotate the tires as they are both different widths, and directional. But since the vehicle is AWD, you will find they wear at roughly the same rate.

[DaveDBD]

Per Discount Tire website, staggered fitment means tires are different and in many cases the wheels also.

Thus why I asked if the rims are different on a BMW.

Thank you for the information.

[nacs]

Originally Posted by DaveDBD

Per Discount Tire website, staggered fitment means tires are different and in many cases the wheels also.

Thus why I asked if the rims are different on a BMW.

Thank you for the information.

No problem. Do you need the tire sizes too?

[DaveDBD]

No. I saw a set of forged 21” rims identical to the BMWs but they were all the same so was wondering if the rims on the car were.

[AiredaleDad]

Keep in mind the reason for the Staggered setup. More control in the cornering. Sure, you can change the wheels to all the same size/width if all you want to do is to prolong your tire life by being able to rotate the tires like a normal car and save some money. Go get them 60K Mi warranty tires. But understand that you will, at the same time, take away the added control factor, which is why BMW put on the staggered tires/wheels in the first place.

[DaveDBD]

I don’t have an issue with staggered sizes. I do have a problem that there are no all season tires available for the 540 21” rims. Great looking wheels but with temps down to below zero and snow every winter, I can’t get them as they come only with summer tires.