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      06-25-2014, 05:00 PM   #1
Shredjim
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Staggered wheels?

I'm looking at getting some 18" wheels for my X1 x28i - and will be selling my original 17" wheels with tires on them (only 2500 miles). Since I live in the NW, and will want to go up to the mountain on occasion during the winter, I need to get all season tires. I like the sound of the new Bridgestone DriveGuard run flat tires that offer a 50,000 mile warranty. Obviously to get that kind of mileage, the tires will need to be rotated - at least every 5,000 - 10,000 miles. They sound good because they supposedly are not as hard and/or stiff riding as other run flat tires. I find the Goodyear Eagle LS2 run flats to be much stiffer than I am used to, and a 50,000 mile warranty is good for any tire, much a fun flat.

My questions are: 1. Since I need all season tires - should I go with the same size wheels all around? 2. How do you guys rotate your staggered wheels to get decent life out of your tires?, when you can't do the normal front to back rotation? I thought rotating side to side is not good for tire longevity? 3. Do you notice the bigger tire in the back adding a considerable amount of additional traction - or is it more for the look?
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      06-25-2014, 07:51 PM   #2
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You don't rotate staggered wheels. You will gain considerable traction if you go with a considerably better tire, otherwise it's more for the look.

I had thought about the same kind of thing. I was originally going to go with a square set up in the stock sizing but with a different offset to achieve a good flush look. After thinking about it and talking to my wheel salesman, I eventually turned that idea down and went with a much more aggressive 19" diameter and offsets.

You have 2 real options here and you gotta ask yourself some serious questions about money etc..

1. You buy a square 18" wheel combo with some decent all-seasons and run spacers to get the flush look. This option would be economical as you'd be able to do regular tire rotations and possibly be able to drive in the snow.

2. You save up and shell out for a set of 18" or 19" wheels with some aggressive offsets and throw on some performance rubber. This option is what I did. It allows me to have a killer set for the summer with crazy offsets and really good sticky rubber, and, allows me to run a proper winter tire for mountain roads in the winter time.

You really need to ask why you want wheels, what you need to do with them, will you love them and how much you're willing to spend and reasons for the budget.
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      06-26-2014, 02:22 PM   #3
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i went square and handles much better with wider rims and tires up front and can now rotate tires also
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      06-26-2014, 10:16 PM   #4
Shredjim
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Quote:
Originally Posted by wantm135i View Post
i went square and handles much better with wider rims and tires up front and can now rotate tires also
How wide of a tire can you put on the front of the X1? My BWM dealer parts guy says 225, but I think it should be able to go bigger? I would like to go 235/45/18 or 245/45/18 with a square set up.
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      06-27-2014, 04:28 PM   #5
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stock was 19x8" wide front rim and 225/40 19 tire i took the back tire and rim and put it on the front with no problem. the back tire and rim is 19x9 and 255/35 19 then i added spacers to push the rims out. i didnt have to put them on the front or back b ut looks and handles so much better. 15 mm spacers all around.
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      06-27-2014, 08:25 PM   #6
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You CAN get a 265 up front, but I wouldn't go any wider than 245. I have 235s and I'm close to rubbing with my offset. 8.5" width wheel. The real problem lies with backspacing as that's where most wheels might interfere with the strut with too shallow an offset.

8.5" wheel = no problems. 9 or bigger and you really have to play around with offsets to get them to fit up front.
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      06-30-2014, 05:06 PM   #7
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My s28i with M Sport 8x18 and 9x18 makes the rear track a whopping 2 inches wider, and the car waddles at speeds around 100+ mph in wind.

At 152 mph (corrected to about 145 real mph) its deadly, and will never be tested there again.

I put 12mm Burger spacers on the front, and it doesn't start that see saw until about 130 mph which is a good top speed for the track.

I'm not drooling over car while I'm enjoying ride so performance trumps looks for me.
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      06-30-2014, 05:47 PM   #8
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Quote:
Originally Posted by 0w40X1 View Post
My s28i with M Sport 8x18 and 9x18 makes the rear track a whopping 2 inches wider, and the car waddles at speeds around 100+ mph in wind.

At 152 mph (corrected to about 145 real mph) its deadly, and will never be tested there again.

I put 12mm Burger spacers on the front, and it doesn't start that see saw until about 130 mph which is a good top speed for the track.

I'm not drooling over car while I'm enjoying ride so performance trumps looks for me.
Interesting information because I have 7.5x18 to put on my s drive and can get 9x18 to put on the back, ( offset 35 same on 7.5's ). My original offset 34. Maybe spacers rear also.
From what you are saying I most probably will need spacers on the front to balance out the bigger rears. In my case would one say 12 to 15mm up front.
I guess with a normal road car with staggered fittings there needs to be a good balance/alignment between all 4 wheels/tyres.
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