BMW X5 OEM wheels 19x9, 19x10; running 285/45/19 on all corners. Problems?

[ihvabmr]

Just acquire a set of OEM BMW E53 X5 19x9, 19x10 sport wheels with 285/45/19 on all four corners. Will this tire setup cause any possible issues? I know that the the sport wheels actually came with 255/50/19 and 285/45/19, and have read somewhere that X5's are very sensitive to staggered setup and tire variations. It may cause issues to transfercase or transmission. I just needed clarifications before I put them on. Any suggestions would be highly appreciated. Thanks!!

[omodos]

hi there go to the site 1010tires.com and play with the calculator on tire sizes and it yields this : and gave me a warning about the 2 sizes, so alas i dont think it is is a good idea

Stock Tire - 285/45R19 >Search Tires Tire 1 - 255/55R19 >Search Tires Section Width:11.22 in285 mmSection Width:10.03 in255 mmRim Diameter:19 in482.6 mmRim Diameter:19 in482.6 mmRim Width Range:9 - 10.5 inRim Width Range:7 - 9 inOverall Diameter:29.09 in738.88 mmOverall Diameter:30.04 in763.01 mmSidewall Height:5.04 in128.01 mmSidewall Height:5.52 in140.20 mmRadius:14.54 in369.31 mmRadius:15.02 in381.50 mmCircumference:91.38 in2321.0 mmCircumference:94.37 in2396.9 mmRevs per Mile:715.0Revs per Mile:692.4Actual Speed:60 mph100 km/hSpeedometer1:58.1 mph96.8 km/hSpeedometer Difference: -Speedometer Difference: 3.264% too slowDiameter Difference: -Diameter Difference: 3.17%

[TriX5]

No problem, the OD of the 285/45 and the 255/50 is nearly identical. Running 4 tires all the same is no problem, I use 255/50 all four corners of the 4.4i.

[omodos]

Originally Posted by TriX5

No problem, the OD of the 285/45 and the 255/50 is nearly identical. Running 4 tires all the same is no problem, I use 255/50 all four corners of the 4.4i.

Trix I was going to to this also but all the tires places said no, basically what they said to me is that fitting a 255/50 19" on a 10j alloy as opposed to fitting the stock 285/45 means the 255/50 will have to stretch somewhat to fit, so stretching outwards would I guess reduce the side wall height and the rolling circumference, so the back and the front wont be that in sync...hmmmm

[TriX5]

I can't believe the amounts of snake oil still being doled out......