Newbie Considering 2011 X5

[barbja]

Originally Posted by BMWREXPENSIVE

Nevermind...I see they mean they are available with the Sports Activity Trim. I like that they are 9x19 and 10x19, correct? That extra width in the back really makes the stance look 'mean'. I wish they were available with Premium..oh well.

Are they staggered? The Crevier parts guy on roadfly had told me they are (a few months ago), but tirerack is showing that the OE tires for Size1 (19") are all the same (255/50-19), but there are two sizes associated with Size2.

In build your own, when you check the 19" wheels in the options, then do a 360 view on the exterior, you can see that it removed the flares. If the back wheels wheels were 10" wide, they would need the flares, right?

I don't think my 335 rears are 10".

Edit: I just checked, he definitely said that they're staggered: http://bimmer.roadfly.com/bmw/forums...9484640-1.html Does anyone have the skinny on this one? [What's on paper vs my lyin' eyes...]

Edit2: This document says they're staggered: http://www.bmw.com/com/en/newvehicle..._catalogue.pdf Buuut, its an international catalog. It says we have LED coronas too.

Edit3: Dur -- how about I just go out and read the side of the stupid tires: 255/50-19 on both front and rear. However, I have a 35d. jcmd2003, can you check your 35is? Perhaps they went all European on it!

[BMWREXPENSIVE]

Originally Posted by barbja

Are they staggered? The Crevier parts guy on roadfly had told me they are (a few months ago), but tirerack is showing that the OE tires for Size1 (19") are all the same (255/50-19), but there are two sizes associated with Size2.

In build your own, when you check the 19" wheels in the options, then do a 360 view on the exterior, you can see that it removed the flares. If the back wheels wheels were 10" wide, they would need the flares, right?

I don't think my 335 rears are 10".

Edit: I just checked, he definitely said that they're staggered: Re: Are 335s for the E70 staggered? - Parts Counter Forum Does anyone have the skinny on this one? [What's on paper vs my lyin' eyes...]

Maybe take a tape measure to the tires - brochure says 9x19 and 10x19 but maybe it's wrong.

[barbja]

Originally Posted by BMWREXPENSIVE

Maybe take a tape measure to the tires - brochure says 9x19 and 10x19 but maybe it's wrong.

My 335s all have 255/50-19s on them, so they're all 9"ers.

[jcmd2003]

Originally Posted by barbja

My 335s all have 255/50-19s on them, so they're all 9"ers.

I just measured my rims, and the are all 10" wide (actually about 10 1/4). Perhaps you can measure yours and see what you get? I was told they were 9 in front, 10 in back as well.

[barbja]

Originally Posted by jcmd2003

I just measured my rims, and the are all 10" wide (actually about 10 1/4). Perhaps you can measure yours and see what you get? I was told they were 9 in front, 10 in back as well.

jcmd2003, look at the size written on the side of the tires. The front should be 255/50 R19. The back would be either the same as the front for 19" or 285/45 R19 for 10"

[jcmd2003]

Originally Posted by barbja

jcmd2003, look at the size written on the side of the tires. The front should be 255/50 R19. The back would be either the same as the front for 19" or 285/45 R19 for 10"

I already know my tire size; they are 255s all around. If you want to know your rim width you should probably use a tape measure rather than assuming your rim width based on the tire aspect.

[barbja]

Originally Posted by jcmd2003

I already know my tire size; they are 255s all around. If you want to know your rim width you should probably use a tape measure rather than assuming your rim width based on the tire aspect.

Eh? Staggered wheels do not use the same tire size all the way around. A wider wheel must use a tire with a larger section width in order to match the bead and hold air in the tire.

The 335 9" uses 255/50-19, 10" uses 285/45-19.

Just like for 214 20" staggered: 9": 275/40-20 10": 315/35-20

If you have 255 all around (written on the tire), that is 255mm, or ~10". Now, that's the section width of the TIRE, not the width of the rim. X5 10" rims take 315s=315mm=12.4". (Little wider rim, little fatter tire...)

If you put a 255 (10") tire on a 10" rim, it wouldn't hold air.

Perhaps I may not know exactly the width of the rim from the section width of the tire, but I DO know that if I have the same section width on all the tires on my car, all the rims on the car are the same width.

And, given those previous two statements, given that we know that a 255 tire can't run on a 10" wide rim, and all I have left is to be running 9" all around (because the only choice I have for 335 is 9" or 10").

Is there a flaw in that logic?

However, I did as you suggested and went out and did my best to measure the width of the rims mounted on my car. Both front and rear appeared to be 10". HOWEVER, that is the "overall rim width". The number that we are concerned with here is the "rim width", which is measured from the inside shoulder to the inside shoulder of the rim lip, which can only be done if you remove the tire. If the overall rim width is 10", then there is no way that the rim width can be 10". Which again, doesn't guarantee that my rims are 9", but by process of elimination with these specific wheels, leaves us with 9".

So -- 9" all around for the 35i Sport Activity also? (since there's 255/50-19s all around)