[jpsimon]

I may be getting aftermarket wheels that I'd like to swap the OEM tires on to (whatever tires end up coming with my 826m wheels). The only thing is the new rear wheels will be 20x11 instead of 20x10.5

Can I safely run the same 285/30 rear tires on the 11" wide wheels?

[HorsePower]

Originally Posted by jpsimon

I may be getting aftermarket wheels that I'd like to swap the OEM tires on to (whatever tires end up coming with my 826m wheels). The only thing is the new rear wheels will be 20x11 instead of 20x10.5

Can I safely run the same 285/30 rear tires on the 11" wide wheels?

Tire manufacturers publish official specs for the range of rim widths approved for each tire and size. I think I recall the width for the OEM rear Michelins is 9.5-10.5 range. You could check for whatever tires are on your car (and that will be the "official" safe answer).

[beachBmmr]

Originally Posted by jpsimon

I may be getting aftermarket wheels that I'd like to swap the OEM tires on to (whatever tires end up coming with my 826m wheels). The only thing is the new rear wheels will be 20x11 instead of 20x10.5

Can I safely run the same 285/30 rear tires on the 11" wide wheels?

Michelins will fit on 11 in width

[HorsePower]

Originally Posted by beachBmmr

Michelins will fit on 11 in width

That looks like it's for 275/35s. For some reason, the oem bmw star Michelin 285/30 shows 9.5-10.5 rim widths. Which is very odd, because the oem bmw star front - which is 10mm narrower - shows 9-11 rim width. Pasted below from Michelin's website:

285/30ZR20/XL (99Y) ★ BSW
Buy now
MSPN
66946
Mileage Warranty
30,000
Section Width on Measuring Rim Width
11.00" on 10.00"
Overall Diameter
26.82
Max Load, Single (LB @ PSI)
1709 @ 50
Sidewall
Black Sidewall
Revs/MI
777
Tire Weight
27.43
Rim Width Range (Min/Max)
9.50-10.50
Tread Depth (in 32nds)
9.5

275/35ZR19/XL (100Y) ★ BSW
Buy now
MSPN
21325
Mileage Warranty
30,000
Section Width on Measuring Rim Width
10.00" on 9.50"
Overall Diameter
26.62
Max Load, Single (LB @ PSI)
1764 @ 50
Sidewall
Black Sidewall
Revs/MI
783
Tire Weight
25.73
Rim Width Range (Min/Max)
9.00-11.00
Tread Depth (in 32nds)
9.5